Best Battery Cell for Portable Chargers: Comparing 18650, 21700, and Polymer Batteries
What do the Tesla Model 3, the newest hoverboards, and fancy vaping mods have in common with your laptop, flashlight, and smartphone? They are all battery-powered and use cordless energy to function.
Things have changed a lot since Sony first popularized the Lithium-ion battery back in 1991.
These days, when you have a quality power bank battery, such as the one in a RAVPower portable charger, you have enough energy to power your favorite devices several times. No cords are necessary; you can charge your devices wherever you are.
You probably have several essential mobile devices— like most people. If you’ve been using a portable charger with an older battery, its charge probably gets depleted very fast. Chances are it runs out of charge when you need it most.
Luckily for you, changes are happening where it matters: in the power bank battery cell. But in order to understand the exciting changes, it’s vital to know the popular power bank battery cells.
We’re also going to tell you what Tesla electric cars and the new RAVPower portable charger 21700 have to do with the changes.
What is An 18,650 Battery?
It’s a lithium-ion battery cell classified by its size: 18,650. The “18” represents the cell’s 18mm diameter. The “65” stands for its 65mm length, and the “0” denotes the cell’s cylindrical form.
What is a 21,700 Battery?
This is a rechargeable lithium-ion cylindrical cell.
The same naming strategy applies here:
- 21 represents the 21mm diameter
- 70 represents the 70mm length
- 0 represents the cylindrical cell form
What’s the Difference between 18,650 and 21,700 Batteries?
From the measurements above, you can easily tell the new-generation lithium-ion battery cell type 21,700 has a larger volume than the older 18,650 battery cell.
Find out the quick volume and energy capacity calculations below. It’s nothing technical, we promise.
What is a Polymer Battery?
It’s a rechargeable lithium-ion battery cell that uses a polymer electrolyte.
Many polymer batteries available now are Lithium-ion-polymer batteries. The big difference between Li-Ion and Li-Po batteries is the electrolytes used. Li-Po batteries also use a combination of laminated sheets rather than the rigid shells used in Li-Ion batteries.
Also, while lithium-ion cells adopt the traditional cylindrical and prismatic forms, lithium-polymer cells come in flexible foil pouches.
How Are the Three Battery Cells Different?
We’re comparing five distinct features to help you get a good grasp of the battery cells so you can decide which is the best power bank battery cell for your needs.
Energy Density
How long do 18,650 batteries hold charge for?
This short calculation below shows that a 21,700 battery offers up to 46% more energy capacity than its 18,650 counterpart.
The 21,700 battery cell achieves that by offering an extra 5mm X 3mm volume and 7,701 cubic millimeters more.
Both the 18,650 and 21,700 batteries are based on the traditional Lithium-ion battery cell. According to research, Li-Ion battery cells have a slightly better energy density compared to Li-Po battery cells. So, if you have many devices to charge, choose a RAVPower power bank with a 21,700 lithium-ion battery cell.
Elon Musk and his team decided to use a variation of the 21,700 Li-Ion battery cells, the Tesla 2170 battery cells, to power the Tesla Model 3 up to 399-499 miles.
That’s a big improvement than what the older two models could achieve on a single charge with their 18,650 Li-Ion battery cells.
Safety and Stability
This is one of two areas where polymer battery cells outdo Li-Ion cells. High-capacity Li-Ion batteries were in the news a while ago for exploding and were banned from flights in different places.
However, advanced battery technologies by reputable manufacturers have eliminated the issue of Li-Ion batteries exploding if they overcharge or overheat.
For example, despite its incredibly high output, the RAVPower PD Pioneer 20,000mAh 60W portable charger (RP-PB201) comes with an entire safety system (iSmart Technology).
The system is geared towards protecting you, your loved ones, and dear devices from burns, overheating, overcharging, and short-circuiting.
The 21,700 battery technology makes for slower discharging and higher thermal stability than the 18,650 battery technology, according to a 2018 research study.
Portability and Weight
This is another area where the polymer battery cell wins.
While polymer batteries are no longer made of plastic, they still use lightweight, more flexible, and ultra-thin materials that make them suitable for use in highly-portable devices.
That’s why most phones and ultra-thin power banks now feature non-removable Li-Po batteries. The batteries are compact and are usually attached to the devices’ other components.
But we’re not saying that all Li-Ion batteries are huge. Some Li-Ion battery chargers are portable. You don’t have to sacrifice high capacity for portability.
A good example is the RAVPower PD Pioneer 10,000 29W portable charger (RP-PB186). Its battery is made with industry-leading LG 21,700 battery cells. They measure 4.4 X 2.0 X 1.0 inches and only weigh 6.0 oz, making it a great power bank for everyday use.
Lifespan Charging Cycles
Li-Ion battery cells tend to have more charging cycles than Li-Po battery cells. How long your Li-Po power bank will serve you depends on the materials the manufacturer used.
The good news is top-tier power bank makers, such as RAVPower, use Smart battery technologies, such as iSmart Technology, to detect a device’s optimal charging. The technology helps protect the battery from premature degradation.
Cost
The gel-based electrolyte and laminated sheets used in Li-Po batteries make them costlier to manufacture than Li-Ion batteries. Li-Ion batteries only have electrolytes, cathodes, anodes, and separators.
Since the cost of production is usually passed on to the end-user, Li-Po devices tend to be more expensive than Li-Ion devices with similar specifications. The higher energy capacity of the 21,700 Li-Ion battery helps reduce battery cell costs by up to 30%. What’s more, the battery has the same output as an 18,650 battery.
That’s how Tesla has managed to sell the Model 3 for a remarkable 35,000. Li-Ion battery chargers also offer the same savings.
advanced RAVPower portable chargers—such as the RP-PB203—are reasonably-priced and offer bigger benefits.
When you get that RAVPower power bank, here’s how you can ensure it serves you for a long time.
- Always keep it in a place that’s neither cold or hot
- When storing your Li-Ion power bank, ensure the battery capacity is 50%
- Apply the “20-80” rule: always charge your power bank when it discharges to 20% and disconnect it from the wall socket when it charges to 80%
- Use a power bank battery cell technology that protects your devices’ batteries from decaying
- Buy a charger from a reputable brand to protect your loved ones, yourself, and your devices
What Next?
The best power bank battery cell depends on your preferences. If you’re looking for higher power capacity, most Li-Ion power banks will deliver—especially those with newer 21,700 battery cells. Polymer batteries are known for their portability.
A RAVPower portable charger offers the best of both worlds: higher power capacity and portability.
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The Rut 2,000 mAh Power Bank is great for keeping your smartphone charged up on the go. With a 2,000 mAh/7.4Wh Li-Ion Grade A battery and a 5V/1A output, it will provide an additional eight hours of talk time. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 5.98
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Emergency 700 mAh Power Bank with 2-in-1 Tip
This power bank is perfect for emergency use to give a power boost. It contains a 700 mAh rechargeable lithium polymer Grade A battery with a push-out 2-in-1 integrated tip to charge Android or Apple smartphones. The silicone strap is to attach the power bank to your purse or bag.
as low as: US 6.38
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Amp 2,200 mAh Power Bank
Keep your smartphone charged up with the Amp 2,200 mAh/8.14Wh Power Bank. The Li-Ion Grade A battery and 5V/1A output provide an additional eight hours of talk time. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product is also available with a custom wrap for the packaging. See 7121-94 Amp Power bank with Full Color Wrap. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 6.98
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UL Listed Amp 2,200 mAh Power Bank
The UL Listed Amp 2,200 mAh Power Bank will keep your smartphone charged up. With a 2,200 mAh/8.14Wh Li-ion Grade A battery and a 5V/1A output this charger will fully charge a smartphone, providing an additional eight hours of talk time. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product has passed UL standards. This product is also available with a custom wrap for the packaging. See 7121-92 UL Amp Power bank with Full Color Wrap. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 7.48
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Jinn Rubber Coated 2200 mAh Power Bank
The Jinn Rubber Coated 2200 mAh Power Bank includes a 2,200 mAh/8.14Wh Li-Ion Grade A battery and a 5V/1A output, which provides an additional eight hours of talk time. Includes a USB-to-Micro-USB connecting cable, which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 8.28
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UL Listed Rotor 2200 mAh Power Bank
The UL Listed Rotor 2200 mAh Power Bank contains a 2,200 mAh/8.14Wh Lithium ion Grade A battery. Input: 5V/700 mA; Output: 5V/1A. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product has passed UL standards. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 8.48
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UL Listed Jolt 2,200 mAh Power Bank
Keep your mobile devices charged up with the UL Listed 2,200 mAh/8.14Wh Power Bank. The internal Li-ion Grade A battery has enough life to fully charge an iPhone, giving you about eight hours of additional talk time. The 5V/1A USB output charges at the same rate as most wall chargers. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product passed UL Standards. This product is also available with a custom wrap for the packaging. See 7121-93 UL Jolt Power bank with Full Color Wrap. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 8.98
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Jolt 2,200 mAh Power Bank
Keep your mobile devices charged up with the Jolt 2,200 mAh/8.14Wh Power Bank contains a Li-Ion Grade A battery. The 5V/1A USB output charges at the same rate as most wall chargers. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge the power bank before initial use.
as low as: US 9.58
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Radiant 2200 mAh Light Up Logo Power Bank
The Radiant 2,200 mAh Light Up Logo Power Bank contains a 2200 mAh Li-Ion Grade A battery. The 5V/1A USB output means that it charges at the same rate of most wall chargers. Includes a USB to Micro USB connecting cable which can recharge the battery backup or be used to charge up devices with a Micro USB input like Android Smartphones from Samsung Motorola HTC Nokia and others. Our batteries have undergone evaluation for numerous quality standards. Only laser imprint will allow the logo to light up while charging.
as low as: US 9.98
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Jolt Power Bank with Digital Power Display
Keep your mobile devices charged up with the Jolt 2,200 mAh/8.14Wh Power Bank with Digital Display. The internal Li-Ion Grade A battery has enough life to fully charge a smartphone, providing about eight hours of additional talk time. The LED digital power indicator will confirm exactly how much charge remains within the power bank. The 5V/1A USB output charges at the same rate as most wall chargers. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. Our batteries have undergone evaluation for numerous quality standards. This product is also available with a custom wrap for the packaging. See 7121-90 Jolt with Digital display Power bank with Full Color Wrap. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 9.98
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Slim Ion 2,500 mAh Power Bank
The Slim Ion 2,500 mAh Power Bank features a sleek, slim, credit card-sized design that can go anywhere you do. With a 2,500 mAh/9.25Wh Lithium Polymer battery and a 5V/1A output, you can charge any smartphone at the same rate as a wall charger. Includes a USB-to-Micro-USB connecting cable which can charge the battery backup or other devices with a Micro-USB input, like Android smartphones from Samsung Motorola HTC Nokia and others. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge the power bank before initial use.
as low as: US 11.98
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Bliz 6000 mAh Power Bank with 2-in-1 Cable
The Bliz 6000 mAh Power Bank features a 6,000 mAh/19.2Wh Grade A Lithium ion battery with a 5V/2A output. Includes a 2-in-1 charging cable that is compatible with any device with a micro port or any iOS phone. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 12.98
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Flux 4000 mAh Powerbank with 2-in-1 Cable
The Flux 4000 mAh Power Bank features a 4,000 mAh/14.8Wh Grade A Lithium Polymer battery with a 5V/1A output. Includes a 2-in-1 charging cable that is compatible with any device with a micro port or any iOS phone. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 13.98
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RFID Gift Set
Optimize your message with this RFID Travel Gift Set. Set includes (1026-05) RFID Card Wallet, (1067-84) Monroe Ballpoint Stylus, (7120-15) Jolt 2,200 mAh Power Bank and the (9094-05) 2 Pc Bundle Gift Box. Pricing includes a one color / one location imprint on each item. Decoration on gift box is available for an additional charge. Available on SureShip!
as low as: US 14.98
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Circuit 4,000 mAh Power Bank
The Circuit Charger 4,000 mAh/14.4Wh Power Bank features a Li-Ion battery with dual output. The first output is 5V/1A for charging smartphones at the same rate as a wall charger, and the second output is 5V/2.1A for tablets. Blue LED indicators show how much power is left in the power bank. Includes USB-to-Micro-USB connecting cable which can charge the battery backup or other devices with a Micro-USB input, like Android smartphones from Samsung Motorola HTC Nokia and others. This product is also available with a custom wrap for the packaging. See 7121-87 Circuit Power bank with Full Color Wrap. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 15.68
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Omega 2500 mAh Ring Holder Wireless Power Bank
The Omega 2500 mAh Ring Holder Wireless Power Bank has a rechargeable lithium polymer battery (9.25Wh) that can be used as a wireless charging pad or normal power bank. It has suction cups and a phone ring that holds the phone in place while charging. Output: 5V/1A. Supports 5W wireless charging for devices including (but not limited to): All iPhone 8/X/11/12/13 Series Samsung Galaxy Note5/S6/S6 Edge/S6 Edge/S7/S7 Edge/S8/S8/S9/S9/Note 9. To charge phones without wireless technology, an external Qi-standard wireless charging receiver or receiver case is required. This device works with any smartphone, even ones without wireless charging, through the normal power bank capabilities. Works with most plastic phone cases on. Includes micro-USB-to-USB charging cable. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge the power bank fully before initial use.
as low as: US 15.98
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UL Listed Gale 4 Port AC Adapter
The UL Listed Gale 4 Port AC Adapter is the perfect travel piece for anyone who needs to charge all of their devices at once. This adapter has a 5V/4.9A max output allowing you to charge up to four devices at once. So grab your devices, charging cables and one AC adapter instead of four.
as low as: US 17.98
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Zodiac High Density 5000 mAh Power Bank
The Zodiac High Density 5000 mAh Power Bank features a 5,000 mAh/18.5Wh Grade A Lithium Polymer battery with a 5V/2A output and 5V/2A micro/Type-C inputs. The power bank is compact enough to fit in your Includes a Micro-USB-to-USB charging cable which can recharge the power bank or other devices with a Micro-USB input, like Android Smartphones. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 18.98
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Favor Tech Gift Set
Optimize your message with this Favor Tech Gift Set. Set includes (7120-17) Amp 2200 mAh Power Bank. (7199-33) Lando Bluetooth Speaker and the (9094-08) 2 Pc Bundle Gift Box. Pricing includes a one color / one location imprint on each item. Decoration on gift box is available for an additional charge. Available on SureShip!
as low as: US 19.98
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UL Listed Abruzzo 4,000 mAh Power Bank
The UL Listed Abruzzo 4,000 mAh Power Bank contains a Lithium Polymer Grade A battery (14.4Wh) and includes a leatherette cover. Input: 5V/1000 mA; Output: 5V/1000 mA. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product has passed UL standards. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 19.98
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UL Listed Fray Universal Adaptor with Dual Ports
This portable and lightweight international travel adapter is equipped with UK, EU and AU plug adapters and dual outputs. Perfect for home, business, and travel. Total max output is 5V/3.4A with each port of 5V/2.1A max that is available for charging two mobile devices simultaneously.
as low as: US 20.98
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Cherokee 5,000 mAh Power Bank
The Cherokee Power Bank is made from natural bamboo material. This battery back up packs a 5,000 mAh Grade A Lithium Polymer battery with a dual output. Both of the outputs are 5V/1A perfect for charging smartphones. Blue LED light indicators show how much power in left in the power bank. Includes a USB to Micro USB connection cable which can charge the battery backup or be used to charge up devices with a Micro USB input like Android smartphones from Samsung Motorola HTC Nokia and others. This product is also available with a custom wrap for the packaging. See 7121-84 Cherokee Power bank with Full Color Wrap. Due to the nature of the bamboo material, variations in laser imprinting quality may occur.
as low as: US 20.98
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UL Listed Resistor Power Bank with Power Check
With its slim design, the UL Listed Resistor Power Bank with Power Check gives you the added power you need without the added weight. With a 4,000 mAh/14.8Wh Grade A Lithium Polymer battery and a 5V/1A output, you can charge your smartphone at the same rate as most wall outlets. The power check display tells you exactly how much power is left in the battery backup. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product has passed UL standard. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 20.98
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Type-C Compatible 10000 mAh Power Bank
This 10,000 mAh Grade A Lithium Polymer power bank is able to support power for all different kinds of smartphones, tablets, even a MacBook by offering Output/Input Type-C port (5V/3A/5V/2A), a Type-A USB output(5V/2.1A) and a Micro input(5V/2A). It intelligently detects attached devices and delivers an ideal current for smartphones, tablets, and Type-C supported devices. Includes a Type-C to Type-C cable that also allows you to charge the power bank from a MacBook with Type-C port. Also includes USB to Micro USB connecting cable that can charge the battery backup or be used to charge devices that require a Micro USB input like Android Smartphones or tablets from Samsung Motorola HTC Nokia and others.
as low as: US 22.98
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Jolt Power Kit with MFi 3- in-1 Cable
Never worry about carrying multiple cables again. The Jolt Power Kit includes a MFi Certified 3-in-1 charging cable with integrated Lightning, 30-pin and Micro USB adaptors, a 2,200 mAh Jolt Charger and a molded carrying case ideal for traveling.
as low as: US 23.98
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ETL Listed Tower Desktop AC Adaptor
This AC wall adapter has five normal USB outputs that allows you to charge multiple USB devices simultaneously. Each have a max output of 5V/2.4A with total max output of 5V/6A.
as low as: US 24.98
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UL Listed Cycle 6000 mAh Power Bank
This UL Listed Cycle 6000 mAh Power Bank contains a 6,000 mAh/22.2Wh Lithium Polymer Grade A battery. Input: 5V/2A; Dual Outputs: 5V/2A. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product has passed UL standards. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 24.98
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Zodiac High Density 10000 mAh Power Bank
The Zodiac High Density 10000 mAh Power Bank features a 10,000 mAh/37Wh Grade A Lithium Polymer battery with a 5V/2A output and 5V/2A micro/Type-C inputs. The power bank is compact enough to fit in your Includes a Micro-USB-to-USB charging cable which can recharge the power bank or other devices with a Micro-USB input, like Android Smartphones. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 25.98
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Spare 10000 mAh Power Bank
The Spare 10000 mAh Power Bank features a 10,000 mAh/37Wh Grade A Lithium Ion battery, LED indicator lights and a flashlight. Charge up to three devices at once with a max output of 5V/2.1A. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge the power bank before initial use.
as low as: US 26.98
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UL Listed Blend 4000 mAh Wireless Power Bank
The UL Listed Blend 4000 mAh Wireless Power Bank contains a 4,000 mAh/14.8Wh Grade A Lithium Polymer battery and a Micro input of 5V/1.8A, a Type-C input of 5V/2A, and a USB output of 5V/2.1A, wireless output of 5V/1A. Supports 5W wireless charging for devices including (but not limited to): All iPhone 8/X/11/12/13 Series Samsung Galaxy Note5/S6/S6 Edge/S6 Edge/S7/S7 Edge/S8/S8/S9/S9/Note 9 Google Nexus 5/6/7 HTC Droid DNA, 8X LG G3/G4, Lucid 2/3 Nokia Lumia 920/930 Works with most plastic phone cases on. Includes a USB-to-Micro-USB charging cable. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 27.98
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Qi 4000 mAh Wireless Power Bank
The 4,000 mAh Grade A Lithium Polymer power bank integrates a Qi wireless charging transmitter and rechargeable battery which could works as a Qi charging pad or a regular power bank on the go. Two outputs: 5V/1A; 5V/2A. Supports wireless charging at up to 1A for devices including (but not limited to): iPhone 8/8Plus/X/XS/XS Max/XR/11/11 Pro/11 Pro Max/12/12 Pro/12 Pro Max/12 miniSamsung Galaxy Note5/S6/S6 Edge/S6 Edge/S7/S7 Edge/S8/S8/S9/S9/Note 9 Google Nexus 5/6/7 HTC Droid DNA, 8X LG G3/G4, Lucid 2/3 Nokia Lumia 920/930 If want to charge iPhone series older than an iPhone 8 via wireless technology, an external Qi-standard wireless charging receiver or receiver case is required. This device will work with any smartphone or tablet that does not have wireless technology through the normal power bank capabilities. Includes a Micro USB to USB charging cable. It works with most plastic phone cases on.
as low as: US 28.98
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UL Listed Zoom Energy Rally 6,000 mAh Power Bank
The UL Listed Zoom Energy Rally Power Bank features a sleek design and silicone Band for easy portability. This battery backup packs a 6,000 mAh/22.2Wh Grade A Lithium Polymer battery with dual 5V/1A outputs. The silicone Band wraps around your phone to keep it attached to the power bank. The power bank will also charge a tablet by automatically changing the output current from two 5V/1A outputs to one 5V/2A output. Includes a USB-to-Micro-USB connecting cable which can recharge the battery backup or other devices with a Micro-USB input, like Android Smartphones from Samsung Motorola HTC Nokia and others. This product has passed UL 2056 testing. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 29.98
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Tron Mini 9600 mAh PD Power Bank
The Tron Mini 9600 mAh PD Power Bank features a 9,600 mAh/35.52Wh Grade A Lithium Polymer battery with 18W max output for smartphones compatible with fast charging. It even provides enough power to charge a laptop with a Type-C port. The power bank is compact enough to fit in your USB-A Output: 5V/3A, 9V/2A, 12V/1.5A; Type-C Input: 5V/2.4A,9V/2A; Type C Output: 5V/3A, 9V/2A,12V/1.5A. Includes 2.62 foot Type-C-to-Type-C cable. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge the power bank before initial use.
as low as: US 29.98
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Coma 6000 mAh Wireless Power Bank
as low as: US 29.98
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UL Listed Fad 5000 mAh Wireless Power Bank
The UL Listed Fad 5000 mAh Wireless Power Bank has a rechargeable lithium polymer battery (18.5Wh) that works as a charging pad or power bank. Supports wireless charging at up to 1A for devices including (but not limited to): iPhone 8/8Plus/X/XS/XS Max/XR/11/11 Pro/11 Pro Max/12/12 Pro/12 Pro Max/12 Min Samsung Galaxy Note5/S6/S6 Edge/S6 Edge/S7/S7 Edge/S8/S8/S9/S9/Note 9 Google Nexus 5/6/7 HTC Droid DNA, 8X LG G3/G4, Lucid 2/3 Nokia Lumia 920/930 To charge phones without wireless technology, an external Qi-standard wireless charging receiver or a receiver case is required. Works with any smartphone or tablet, even ones without wireless technology, using the normal power bank capabilities. USB-A Output: 5V/2A; Micro Input: 5V/1A. Works with most plastic phone cases on. Includes a Micro-USB-to-USB charging cable. Packaged in a premium gift box. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 29.98
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UV Phone Sanitizer with Wireless Charging Pad
This UV Phone Sanitizer with Wireless Charging Pad uses UV-C light technology for sanitization to kill 99% of microorganisms tested. Two UV germicidal LEDs (270-280nm wavelength) are used for optimal sanitization. Press the button once for a short 90 second sanitization. Press the button twice for a 5-minute-deep clean sanitization. It can sanitize almost anything that fits inside (7.5 L 4 W 1 H) such as large phones (iPhone 12 Pro Max), keys, credit cards, watches, eyeglasses, jewelry, etc. The sanitization will be stopped automatically once the lid is lifted to avoid UV light exposure. The wireless pad supports 5W wireless charging and works with most plastic phone cases. Includes a 39 USB to Type C charging cable. Available for shipment within the United States (including Alaska Hawaii Puerto Rico). Not available for export.
as low as: US 31.98
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Relay 20000 mAh Power Bank
The Relay 20,000 mAh Power bank has three USB ports with a max output of 5V/2.1A. This power bank contains a Grade A Lithium Ion battery that will keep your devices charged for days. Includes a USB to Micro USB connecting cable that can be used to charge the battery backup or be used to charge devices with a Micro USB input like Android smartphones from Samsung Motorola HTC Nokia and others. This product is also available with a custom wrap for the packaging. See 7121-82 Relay Power Bank with Full Color Wrap
as low as: US 39.98
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Stellar 8000 mAh Solar Power Bank
The Stellar 8000 mAh Solar Power Bank has a Grade A Lithium Polymer battery (29.6Wh) that’s great for staying charged up on the go. With dual outputs:5V/1A and 5V/2.1A (max), you can charge smartphones or tablets at the same rate as a wall charger. Includes a USB-to-Micro-USB connecting cable that can be used to charge the battery backup or devices with a Micro-USB input, like Android smartphones from Samsung HTC Motorola Nokia and others. Color of solar panel may vary from every batch. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 44.98
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Pristine 10000 Wireless Power Bank w/ UV Sanitizer
The Pristine 10000 Wireless Power Bank w/ UV Sanitizer has a rechargeable 10000 mAh/37Wh lithium polymer battery, which works as a 5W wireless charging pad or a normal power bank. It also uses UV-C light technology without chemicals or mercury to kill 99% of microorganisms tested. Two UV-C LEDs work at 270-285nm wavelength coverage. It can sanitize almost anything that fits inside (6.5 L 3.31 W 0.43 H), such as large phones (iPhone 12 Pro Max) and small gadgets, like keys, etc. It can also sanitize contents while wireless charging a smartphone. Works with most plastic phone cases on. Type-C Input: 5V/2A; USB Output: 5V/2A. Included 3.28 feet USB to Type C charging Cable. Packaged in premium gift box. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Available for shipment within the United States (including Alaska Hawaii Puerto Rico). Not available for export. Please charge power bank before initial use.
as low as: US 48.98
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Constant 10000 mAh Wireless Power Bank w/Display
The Constant 10000 mAh Wireless Power Bank with Display contains a rechargeable lithium polymer battery (37Wh) which works as a charging pad or a power bank. It features an LED display to show remaining capacity percentage. Two outputs: 5V/1A; 5V/2A. Supports wireless charging at up to 1A for devices including (but not limited to): All iPhone 8/X/11/12/13 Series Samsung Galaxy Note5/S6/S6 Edge/S6 Edge/S7/S7 Edge/S8/S8/S9/S9/Note 9 Google Nexus 5/6/7 HTC Droid DNA, 8X LG G3/G4, Lucid 2/3 Nokia Lumia 920/930 To charge older iPhone models without wireless technology, an external Qi-standard wireless charging receiver or receiver case is required. Works with any smartphone or tablet, even ones without wireless charging, using the normal power bank capabilities. Works with most plastic phone cases on. Micro-USB-to-USB charging cable. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 49.98
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UL Listed Light Up Qi 10000 Wireless Power Bank
The UL Listed Light Up Qi 10000 Wireless Power Bank lights up when it charges, bringing your logo to life. It contains 10,000 mA/37Wh Grade A Lithium Polymer battery and a Micro input of 5V/2A, two USB outputs of 5V/2.1A max, wireless output of 5V/1A. Supports 5W wireless charging for devices including (but not limited to): All iPhone 8/X/11/12/13 Series Samsung Galaxy Note5/S6/S6 Edge/S6 Edge/S7/S7 Edge/S8/S8 Google Nexus 5/6/7 HTC Droid DNA, 8X LG G3/G4, Lucid 2/3 Nokia Lumia 920/930 Includes a USB-to-Micro-USB charging cable. UL- and Qi-certified. This item must be lasered to reveal the light up function. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 55.98
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High Sierra Falcon Solar 10000 mAh Power Bank
The High Sierra Falcon Solar 10000 mAh Power Bank is a rugged, solar-powered Grade A Lithium Polymer battery backup (38Wh) and COB flashlight. With a 5V/2.1A output, you can charge a smartphone or tablet at the same rate as a wall charger. Includes a USB-to-Micro-USB connecting cable that can be used to charge the battery backup or devices with a Micro-USB input, like Android smartphones from Samsung Motorola HTC Nokia and others. Color of solar panel may vary from every batch. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use.
as low as: US 57.48
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UL Fad 10000 mAh PD Fast Wireless Power Bank
The UL Listed Fad 10000 mAh PD Fast Wireless Power Bank has a rechargeable lithium polymer battery (37Wh) that works as a charging pad or power bank. The 18W USB-C port provides enough power to charge laptop with a Type-C port and fast charge compatible devices. Type-C Input: 5V/2A, 9V/2A; Type C Output: 5V/3A, 9V/2A, 12V/1.5A. The power bank supports three wireless charging modes: 7.5W for iPhone X/8/8 Plus/XS/XS Max/XR/11/11 Pro/11 Pro Max/12/12 Pro/12 Pro Max/12 Min; 10W for Samsung Galaxy S9/S9 plus/S8/S8 Plus/Note 8/9 and more, and 5W standard charging for all enabled devices. To charge phones without wireless technology, an external Qi-standard wireless charging receiver or receiver case is required. USB-A Output: 5V/2.4A, 9V/2A, 12V/1.5A; Micro Input:5V/2A, 9V/2A; Works with most plastic phone cases on. Includes a Type-C-to-Type-C charging cable. Packaged in a premium gift box. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 58.98
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Vent 20000 mAh USB-C PD Fast Wireless Power Bank
The Vent 20000 mAh USB-C PD Fast Wireless Power Bank has a rechargeable lithium polymer battery (74Wh) that works as a wireless charging pad or power bank. The digital power indicator displays remaining battery percentage. The 18W USB-C port can charge laptops with Type-C inputs and fast charge compatible devices such as iPhone X/8/8 Plus/XS/XS Max/XR/11/11 Pro/11 Pro Max/12/12 Pro/12 Pro Max/12 Min. Use fast wired charging to charge it up to 50% capacity in 30 minutes. Power bank supports three wireless charging modes: 7.5W for iPhone 8 and newer; 10W for Samsung Galaxy S9/S9 plus/S8/S8 Plus/Note 8/9 and more, and 5W standard charging for all enabled devices. Power bank has USB-A output of 5V/3A 9V/2A 12V/1.5A and micro input of 5V/2.4A; Type C Input: 5V/2.4A 9V/2A; Type-C Output: 5V/3A 9V/2A 12V/1.5A. Works with most plastic phone cases on. Includes a 31-inch Type-C-to-Type-C charging cable. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents.
as low as: US 64.98
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Snap UL Listed Fast Wireless Power Bank Stand Kit
The Snap UL Listed Fast Wireless Power Bank Stand Kit includes a 10,000 mAh/37Wh fast wireless power bank with Type-C input/output of 5V/2A and USB-A output of 5V/2.4A, UL listed QC 3.0 AC adapter and a stand with integrated cable. Supports three different wireless charging modes: 7.5W for All iPhone 8/X/11/12/13 Series;10W for Samsung Galaxy S9/ S9 plus/ S8/ S8 Plus/ Note 8/9 and others, and 5W standard charging for all enabled devices. AC adapter output-5V/3A, 9V/2A, 12V/1.5A. Works with most plastic phone cases on. Power bank will recharge itself when in the stand position. The quick-charge AC adapter is required for fast wireless charging. Power bank works with smartphones or tablets, even ones without wireless technology, using the normal power bank capabilities. USB-to-Type-C cable included. Packaged in a premium gift box. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge the power bank before initial use.
as low as: US 66.98
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Power Banks
The XB4 Titan Power Bank seamlessly combines its iconic design with class-leading specifications, sustainable materials, and innovative features. It’s the perfect Power Bank to fast-charge your Ultrabook, tablet and smartphone. Thanks to the built-in cable you’re always ready to charge on-the-go! The ultimate laptop Power BankThe Titan packs 3 powerful USB-C PD outputs, with a combined total output of 90W. The 60W USB-C PD port is optimised to charge Ultrabooks and other lightweight laptops, it fully charges them in only 1,5 hours. The other USB-C PD outputs are highly suitable to charge your smartphone or tablet. Extra fast rechargingThanks to the 60W USB-C PD input, the Power Bank itself can be fully recharged and be ready to use in under 2 hours. It even supports pass-through charging, so you can charge other devices even while the Power Bank is being recharged!Moving towards a sustainable futureIn a push to move towards a more sustainable future, we’ve incorporated the use of recycled plastic into the body of our Power Bank. Even our packaging is made from recycled materials. Our products are built to last. This way we fight the replacement market. A design that feels good Design goes hand in hand with user-experience. This is why we pay special attention to details; like a smooth soft-touch finish, a carefully integrated magnetic USB-C cable, as well as the LED battery display that only appears when needed. Re-imagining the battery displayThe LED battery display in the Titan perfectly blends into the overall design of the Power Bank. Its retro inspired pixelated design only appears when needed, showing the actual battery percentage and charging status. When turned off, the display is totally invisible – making the design of the Power Bank stand out even more, remaining clean minimalistic.
The XB4 Titan Power Bank seamlessly combines its iconic design with class-leading specifications, sustainable materials, and innovative features.It’s the perfect Power Bank to fast-charge your MacBook, tablet and smartphone. Thanks to the built-in cable you’re always ready to charge on-the-go! The ultimate laptop Power BankThe Titan packs 4 powerful USB-C PD outputs, with a combined total output of 150W. The 140W USB-C PD port is optimised to charge MacBooks or other powerful laptops, it fully charges them in only 1.5 hour! The other USB-C PD outputs are highly recommended for charging your smartphone or tablet.Extra fast rechargingThanks to the 100W USB-C PD input, the Power Bank itself can be fully recharged and be ready to use in under 1,5 hours. It even supports pass-through charging, so you can charge other devices even while the Power Bank is being recharged!Moving towards a sustainable futureIn a push to move towards a more sustainable future, we’ve incorporated the use of recycled plastic into the body of our Power Bank. Even our packaging is made from recycled materials. Our products are built to last. This way we fight the replacement market.A design that feels goodDesign goes hand in hand with user-experience. This is why we pay special attention to details; like a smooth soft-touch finish, a carefully integrated magnetic USB-C cable, as well as the LED battery display that only appears when needed.Re-imagining the battery displayThe LED battery display in the Titan perfectly blends into the overall design of the Power Bank. Its retro inspired pixelated design only appears when needed, showing the actual battery percentage and charging status. When turned off, the display is totally invisible – making the design of the Power Bank stand out even more, remaining clean minimalistic.
Next Gen Power is hereThis Magnetic Wireless Power Bank brings you Next Gen charging. It is fully compatible with the new magnetic wireless charging standard from Apple, which means this Power Bank will magnetically snap and attach itself to the back of your iPhone 14 and iPhone 12/13.Magnetic PowerBecause the magnets in this Power Bank perfectly align with the ones in your iPhone 14 and iPhone 12/13 it ensures an optimal charging position to wirelessly charge. The magnets are strong enough to keep the Power Bank in place while you charge and use your iPhone. Giving #EnergyEquipped with a high capacity battery, this Power Bank gives you and your devices more energy. Its 5000mAh battery is powerful enough to wirelessly charge your iPhone at least 1x! Future proof with USB-CThis Power Bank has a USB-C port that functions as both an in and output. This means you can also charge your phone or other devices by simply attaching a cable! Next Gen Magnetic Wireless Charging Compatible with iPhone 14 and iPhone 12/13 5000mAh capacity 7.5W Wireless Charging
Next Gen Power is hereThis Magnetic Wireless Power Bank brings you Next Gen charging. It is fully compatible with the new magnetic wireless charging standard from Apple, which means this Power Bank will magnetically snap and attach itself to the back of your iPhone 14 and iPhone 12/13 Magnetic PowerBecause the magnets in this Power Bank perfectly align with the ones in your iPhone 14/13/12, it ensures an optimal charging position to wirelessly charge. The magnets are strong enough to keep the Power Bank in place while you charge and use your iPhone. Giving #EnergyEquipped with a high capacity battery, this Power Bank gives you and your devices more energy. Its 10.000mAh battery is powerful enough to wirelessly charge your iPhone at least 2x! Future proof with USB-CThis Power Bank has a USB-C port that functions as both an in and output. This means you can also charge your phone or other devices by simply attaching a cable! Next Gen Magnetic Wireless Charging Compatible with iPhone 14/13/12 10.000mAh capacity 7.5W Wireless Charging
Next Gen Power is hereThis Power Bank has all the latest tech and new features that bring you Next Gen charging speeds. It has 2 USB outputs, and one extra powerful 20W USB-C that’s designed to charge your smartphone faster than ever. Fast. How fast?This Fuel Series Power Bank can charge a brand new iPhone 14 and iPhone 12/13 up to 59% in just half an hour. Compared to using an old charging brick, this is up to 3x faster!Developed with passionAt Xtorm we believe you should get joy and energy from using our products, which is why we put extra care and attention into the design and user friendliness of our power banks. A design that feels goodThis Power Bank has an iconic geometric design with a matte soft touch finish, designed to look and feel great. The result is a Power Bank that stands out from the crowd, and which is a true joy to use every day. Giving #EnergyEquipped with a high capacity battery, this Power Bank gives you and your devices more energy. Its 20W power output and 10.000mAh battery are strong enough to fast charge your phone up to 2,5 times!Backwards compatibleEven though this Power Bank is fully loaded with all the latest tech and innovations, it’s still fully backwards compatible with all of your older devices. We’re future proof, but not forgetting the past.
Next Gen Power is hereThis Power Bank has all the latest tech and new features that bring you Next Gen charging speeds. It has 2 USB outputs, and one extra powerful 20W USB-C that’s designed to charge your smartphone faster than ever. Fast. How fast?This Fuel Series Power Bank can charge a brand new iPhone 14 and iPhone 12/13 up to 59% in just half an hour. Compared to using an old charging brick, this is up to 3x faster!Developed with passionAt Xtorm we believe you should get joy and energy from using our products, which is why we put extra care and attention into the design and user friendliness of our power banks. A design that feels goodThis Power Bank has an iconic geometric design with a matte soft touch finish, designed to look and feel great. The result is a Power Bank that stands out from the crowd, and which is a true joy to use every day. Giving #EnergyEquipped with a high capacity battery, this Power Bank gives you and your devices more energy. Its 20W power output and 20.000mAh battery are strong enough to fast charge your phone up to 5 times!Backwards compatibleEven though this Power Bank is fully loaded with all the latest tech and innovations, it’s still fully backwards compatible with all of your older devices. We’re future proof, but not forgetting the past.
The Rugged Power Bank 10.000 is the ultimate survival gadget to keep you going during your outdoor adventures. It allows you to quickly fast charge your mobile devices, wherever you are.IP65 Water ResistantThis power bank has been designed and tested to be IP65 water resistant, meaning you don’t have to worry about unpredictable weather or accidentally dropping the power bank in shallow water. Perfect for any situation when exploring the outdoors!Recharge your phone 2,5 timesDon’t let the compact design fool you, this power bank packs a powerful 10.000mAh battery that’s large enough to recharge your phone up to 2,5 times.Fast charge any deviceThe power bank features a USB-C Power Delivery port capable of 18W in-/output, as well as two regular USB ports with Quick Charge 3.0. This means you’re able to fast charge almost any smartphone – Android devices, as well as Apple iPhones. Even the power bank itself can be fully recharged in just 3 hours!Powerful integrated flashlightHaving a powerful flashlight integrated into the power bank means you always have an emergency flashlight at hand when you need one.
The Rugged Power Bank 20.000 is the ultimate survival gadget to keep you going during your outdoor adventures. It allows you to quickly fast charge your mobile devices, wherever you are.IP65 Water ResistantThis power bank has been designed and tested to be IP65 water resistant, meaning you don’t have to worry about unpredictable weather or accidentally dropping the power bank in shallow water. Perfect for any situation when exploring the outdoors!Recharge your phone 5xDon’t let the compact design fool you, this power bank packs a powerful 20.000mAh battery that’s large enough to recharge your phone up to 5x.Fast charge any deviceThe power bank features two USB-C Power Delivery ports capable of 15W and 30W in-/output, as well as two regular USB ports with Quick Charge 3.0. This means you’re able to fast charge almost any smartphone – Android devices, as well as Apple iPhones. Even the power bank itself can be fully recharged in just 3.5 hours!Powerful integrated flashlightHaving a powerful flashlight integrated into the power bank means you always have an emergency flashlight at hand when you need one.
The Xtorm Solar Charger 10,000 is a rugged outdoor solar charger, built to last. It gives you the freedom and energy to go anywhere you want, making it perfect for all your adventures.Powered by the sunThe Solar Charger itself can be recharged in two ways, either via USB-C, or by taking it outside and let the built-in solar panel do its work. Powerful high capacity batteryThe solar charger is equipped with a 10,000mAh lithium-polymer battery, powerful enough to charge a smartphone at least 2x. The charger also features a 20W USB-C output that fast charges your smartphone, so you’re always ready to go.Made for adventureThe Solar Charger is splash-proof, drop-resistant, and has a powerful integrated LED flashlight, making it the perfect solar charger for all your outdoor adventures. With the large internal battery and powerful solar panel you will always have some extra energy at hand, wherever and whenever needed!Solar recharge timeA wide variety of factors have an impact on how fast the sun is able to recharge your Solar Charger, like the season, location, time of day, and of course cloudiness.To give you a clear picture how much free power you can expect from the built-in solar panel, we provide 2 different scenarios below to illustrate the difference in charging speed. How long it takes to fully recharge your Solar Charger:1. On a mostly sunny day in spring or summer, it takes around 10 days2. On a mostly sunny day in fall or winter, it takes around 20 days As you can see, we haven’t given an example of how long it takes to recharge on mostly cloudy days. This is because, unfortunately, solar charging is really not effective enough in these conditions.At Xtorm we use the high efficiency SunPower solar cells to provide as much power as possible from a small surface area. Are the charging times listed above not as fast as you would like? Don’t worry, at Xtorm we have solar chargers and panels in all sizes. Check out our other products to see which suits you best!In short 10,000mAh battery 20W USB-C PD output 2x USB output Built-in 1,2W SunPower solar panel Splash-proof (IPX4) Powerful integrated LED flashlight
The Xtorm Solar SuperCharger 10,000 is a rugged outdoor solar Charger with a double solar panel for maximum energy capture. It gives you the freedom and energy to go anywhere you want, making it perfect for all your adventures.Powered by the sunThe Solar SuperCharger itself can be recharged in two ways, either via USB-C, or by taking it outside and let the built-in set of solar panels do its work. Powerful high capacity batteryThe solar SuperCharger is equipped with a 10,000mAh lithium-polymer battery, powerful enough to charge a smartphone at least 2x. The SuperCharger also features a 20W USB-C output that fast charges your smartphone, so you’re always ready to go.Made for adventureThe Solar SuperCharger is splash-proof, making it the perfect solar SuperCharger for all your outdoor adventures. With the large internal battery and powerful solar panel you will always have some extra energy at hand, wherever and whenever needed!Solar recharge timeA wide variety of factors have an impact on how fast the sun is able to recharge your Solar Charger, like the season, location, time of day, and of course cloudiness.To give you a clear picture how much free power you can expect from the built-in solar panel, we provide 2 different scenarios below to illustrate the difference in charging speed. How long it takes to fully recharge your Solar Charger:1. On a mostly sunny day in spring or summer, it takes around 5 days2. On a mostly sunny day in fall or winter, it takes around 10 days As you can see, we haven’t given an example of how long it takes to recharge on mostly cloudy days. This is because, unfortunately, solar charging is really not effective enough in these conditions.At Xtorm we use the high efficiency SunPower solar cells to provide as much power as possible from a small surface area. Are the charging times listed above not as fast as you would like? Don’t worry, at Xtorm we have solar chargers and panels in all sizes. Check out our other products to see which suits you best!In short 10,000mAh battery 20W USB-C PD output 2x USB output Built-in 4,5W SunPower solar panel Splash-proof (IPX4)
Charge multiple devicesTo make sure you can easily recharge your devices on-the-go, the powerbank features two 12W outputs: regular USB, as well as USB-C. This means you can recharge two devices at the same time! Pass-through chargingWhile you are recharging the powerbank, you can still use the USB port as an output – allowing you to charge a device while the powerbank itself is also being recharged!Designed to stand outThis Essential Powerbank combines the features you need with a design that truly stands out. The fresh color options are accentuated by the matte finish, subtle graphic texture, and glossy accents.Built for travelWhether you want to use a powerbank while commuting to work, traveling, or during an outdoor adventure – you can always count on your Xtorm powerbank. We take pride in our high quality and durable designs, which are proven and tested every day by millions of travelers, all around the world.
Charge multiple devicesTo make sure you can easily recharge your devices on-the-go, the powerbank features two 15W outputs: regular USB, as well as USB-C. This means you can recharge two devices at the same time! Pass-through chargingWhile you are recharging the powerbank, you can still use the USB port as an output – allowing you to charge a device while the powerbank itself is also being recharged!Designed to stand outThis Essential Powerbank combines the features you need with a design that truly stands out. The fresh color options are accentuated by the matte finish, subtle graphic texture, and glossy accents.Built for travelWhether you want to use a powerbank while commuting to work, traveling, or during an outdoor adventure – you can always count on your Xtorm powerbank. We take pride in our high quality and durable designs, which are proven and tested every day by millions of travelers, all around the world.
Charge multiple devicesTo make sure you can easily recharge your devices on-the-go, the powerbank features two 15W outputs: regular USB, as well as USB-C. This means you can recharge two devices at the same time! Pass-through chargingWhile you are recharging the powerbank, you can still use the USB port as an output – allowing you to charge a device while the powerbank itself is also being recharged!Designed to stand outThis Essential Powerbank combines the features you need with a design that truly stands out. The fresh color options are accentuated by the matte finish, subtle graphic texture, and glossy accents.Built for travelWhether you want to use a powerbank while commuting to work, traveling, or during an outdoor adventure – you can always count on your Xtorm powerbank. We take pride in our high quality and durable designs, which are proven and tested every day by millions of travelers, all around the world.
The Wireless Power Bank Essence is a no-nonsense way to wirelessly charge your smartphone. Simply press the button and place your smartphone on the surface of the power bank to start charging. You don’t even have to remove your protective case, the Essence is engineered in such a way that it easily charges through covers.Go wirelessThe ability to wirelessly charge your smartphone anywhere you are, frees you from the hassle of lost or tangled charging cables. The combination of a user friendly design and great features makes this power bank perfect for when you’re on the go.Powerful featuresIn addition to wireless charging it’s also possible to charge devices through either of the two USB ports, as well as the USB-C port. The Essence has a 6000mAh internal battery, which holds enough power to charge a smartphone at least 1,5 times. The power bank can even function as a charging pad when it’s connected to a USB adapter.
6000mAh internal battery Charges 2 devices at the same time 3.5 Watts SunPower Panel The Lava Charger is a powerful universal mobile charger with built-in Sunpower solar panel and a rubberized, matte finish. With its robust housing and a powerful 3.5watt high-efficiency Sunpower panel, this solar charger is excellent for outdoor usage. The internal battery can hold up to 6.000mAh of power, It can be recharged in only 10-12 hours of sunlight to recharge completely. Simply unfold the solar charger in the sun, and charging starts immediately. Of course, you can charge the internal battery by USB or Mains as well. A blue LCD display shows the charging progress, while the unit is being charged. Once fully loaded, the Lava Charger has enough power to recharge the smartphone a multitude of times. With its multiple charging options, the Lava Charger is perfectly suited for every device. It has two regular USB ports at the front, a micro-USB charging cable on one side and a standard USB cable to charge the device on the other. With all of these connectivity options, it’s possible to even charge up to 3 devices simultaneously! In addition, this charger has high-performance output of 2.1A, which allows extra-fast charging! You are able to charge mobile devices and even tablets. The Lava charger is ideal for outdoor activities, like traveling, hiking and tours. Due to the powerful solar panels and the large internal battery, you always have enough power for your mobile devices. Features of the Xtorm Lava Solar Charger First-rate Solar PanelsXtorm incorporates the latest SunPower technology, these are the best solar panels available on the consumer market. Solar efficiencyAll Xtorm Solar Chargers are provided with SunPower solar panels boasting the industry’s highest solar efficiency ensuring least possible loss of energy during the charging process. Auto Power ManagementThe Xtorm Lava Solar Charger is provided with the APM-chip. This means that this Solar Charger automatically balances the correct charging speed and efficiently divides the power between the attached devices. Fast ChargingThe Lava Solar Charger has a high input and high outputs. These features make it possible to charge the connected device as fast as possible and recharge the Solar Charger itself on high speed via USB. Xtorm safety check A-class batteriesXtorm uses only the best battery cells that meet all safety requirements and can provide the fast charging you need Overload protectionXtorm mobile chargers protect the Xtorm’s internal battery and the battery of the attached mobile device from overcharging. Temperature controlAll Xtorm chargers are provided with a temperature control chip that prevents overheating. Auto Power ManagementThe Xtorm APM-chip automatically balances the power over the attached devices to prevent overcharging or overheating. About this Xtorm Solar Charger Xtorm solar chargers are the best solar chargers on the consumer market. With short charging and discharging times and high-quality materials. The best solar chargers on the market! Generate your own power! With this Xtorm solar charger, you can easily generate your own power. The stored power can be used to charge mobile devices, via USB. This is an extremely useful gadget for bike rides, hiking, adventurous holidays, etc.! Apart from its usefulness, being able to generate your own power gives you an ultimate sense of freedom and independence. Efficient SunPower solar power! All Xtorm solar chargers are provided with extremely efficient solar panels. With an efficiency of 22%, these panels can generate a lot of power with a small surface area. These SunPower panels are the best solar panels available on the consumer market. Lightweight and robust design! The Xtorm solar charger is extremely robust, yet lightweight. The mobile charger is easy to attach to a backpack, bicycle or tent, using a carabiner, for example. From sunshine to USB power! Like magic. The Xtorm converts solar energy into power, electricity which you can then use to keep all your mobile devices charged!
PowerBanks How It Works
Powerbanks are becoming popular these days as our gadgets or devices were all getting smarter versatile tools in our daily lives specially for various types of communications such as calls,SMS,emails and other task,and these Smart devices (smartphones tablets) needs more power for them to work and last for a day as they should be. Normally the devices that needs a back up power are the smartphones tablets these days.And most of us individually owns one.But not all people knew how powerbank works literally.And some sellers just don’t explain on how their Powerbank works.And many people just end up buying the wrong specifications of powerbank that suits the need of their devices (such as smartphones tablets).That’s the reason I made this and compiled some facts gathered from different manufacturers and blogs site ,and made it into one instructables that may help some DIY’ers who planned to build their own powerbank or just buy the right one.
Step 1: How It Works? What Type of Powerbank to Choose?
Power Banks are all the rage, they came in various shapes and sizes.,but what are they for? We explore their potential, and how to choose the right one. What is a Power Bank and what can they charge? Portable Power Banks are comprised of a special battery in a special case with a special circuit to control power flow. They allow you to store electrical energy (deposit it in the bank) and then later use it to charge up a mobile device (withdraw it from the bank). Power Banks have become increasingly popular as the battery life of our beloved phones, tablets and portable media players is outstripped by the amount of time we spend using them each day. By keeping a battery backup close by, you can top-up your device(s) while far from a wall outlet. The Power Banks we’re talking about are good for almost any USB-charged devices. Cameras, GoPros, Portable speakers, GPS systems, MP3 players, smartphones and even some tablets can be charged from a Power Bank. practically anything that charges from USB at home can be charged from a Power Bank. you just have to remember to keep your Power Bank charged, too! Power Banks may also be known as Power Stations or Battery Banks, too. What types of Power Banks are there?Three major types of Power Bank found on the market today: 1. Universal Power Bank. They come in many sizes and configurations which can be tailored to your device requirements and to your budget. 2. Solar-Charged Power Bank. They have photovoltaic panels which can trickle-charge the internal battery when placed in sunlight. Solar charging isn’t fast, so they can usually charge via cable as well. 3. The third type of Power Bank is the older-style battery phone case. While they can be handy, this type of Power Bank has very narrow device compatibility, How do I charge a Power Bank? Most commonly, a Power Bank will have a dedicated input socket for receiving power. This power can come from a USB socket on your computer, but may charge faster when using a wall socket adapter. We most often see Power Banks use a Mini or Micro-USB socket for charging, and full-sized USB sockets for discharging. On very rare occasions, Power Banks can use the same socket for input and output, but this is rare and should not be assumed of any Power Bank, as trying to force power into an output can damage the battery. Always check the manual for specific instructions if you’re not able to find a clearly marked input socket. Depending on the capacity of the Power Bank and its current charge level, it can take quite a while to fill up. For example, a 1500mAh rated Power Bank should take about the same time as your typical smartphone to charge. For larger banks, this time can be doubled, tripled or quadrupled. Most Power Banks have both an LED indicator to show when they are at capacity, and a safety cut-off to prevent overcharging and overheating. Whenever possible, remove the Power Bank from charge when it is full, or at least avoid leaving it connected long-term after its full. Ambient temperature and power flow will also affect charge times, so it’s best to keep it topped off regularly. Some Power Banks don’t work well with high-capacity chargers (like the ones that come with iPads). Trying to fast-charge a Power Bank from a 2A charger can result in damage to the internal circuitry. How long does a Power Bank last? This is a bit of a loaded question. There are two important life expectancies to consider: 1. The number of charge/discharge cycles a Power Bank can reliably perform in its lifetime. 2. How long a Power Bank can retain its charge when not in use. The answer to point one can differ between models of Power Bank, their internal components and the quality of their manufacturing. We try not to stock Power Banks which have fewer than 500 charge cycles in them. This would allow you to charge a device from the Power Bank every day for a 1.5 years before it started to lose its ability to hold charge long-term. Better and more expensive Power Banks can last longer, while smaller and cheaper units may fall short depending on their treatment. Power Banks are generally not used daily, so they often last much longer than 18 months in real-world usage patterns. Point two depends on the quality of the controller circuitry and battery cells. A good Power Bank can hold charge for 3 to 6 months with minimal loss. Lower quality Power Banks may struggle to retain a useful charge more than 4 to 6 weeks. In this regard, you get what you pay for, and if you need a long-term emergency power supply consider increasing your budget to ensure you’re not going to be caught short. Most Power Banks will slowly lose charge over time, to a degree influenced by the environment and their treatment. For example, leaving a Power Bank in the car where the temperature can fluctuate greatly over time can shorten its lifespan. Technical Term Glossary What does mAh mean? Batteries common to mobile devices and Power Banks are rated on their ampere-hours, measured in milliamps to create non-decimal numbers. The mAh ratings denote capacity for power flow over time. Li-Ion Li-Polymer Lithium-Ion and Lithium-Polymer batteries are the most common rechargeable cell types found in Power Banks. Lithium-Ion cells are generally cheaper and limited in mAh capacity, while Lithium-Polymer cells can be larger and don’t suffer from a memory effect over time. Efficiency When power is transferred, there is always loss due to resistance. Power Banks are not able to transfer 100% of their actual capacity to a device, so we factor in this loss when calculating how many times an average device can be charged from a fully powered Power Bank of any given size. Efficiency ratings differ between Power Banks based on their cell type, component quality and environment. Ratings between 80% and 90% are the current industry standard. Beware of suspiciously low-cost options claiming efficiency ratings of over 90%. Device Depletion This is the state of the battery in the device you wish to charge. The lower its power, the more a Power Bank has to work to bring it back to life. We consider charging from 20% to 90% a full charge, as the efficiency loss increases beyond these points, leading to wasted charging potential. Going from 5% to 100% can take exponentially more power.
Step 2: Choosing the Right Powerbanks:
1.How do I know which powerbank suits my device? Depending on individual needs and requirements, there are several general criteria to consider when selecting a powerbank: a) Capacity For example if your phone battery is 1500mAh and is 0% now, a powerbank with 2200mAh can charge your phone 1 time. If your phone battery is 3000mAh and is 0% now, a powerbank with 2200mAh will not be able to charge your phone to full because the phone battery capacity is higher than the powerbank. If you require a powerbank that is able to charge your phone several times, you need a powerbank with higher capacity. b) Number of output 1 output to charge 1 device, 2 outputs to charge 2 devices. c) Output specification 1A-1.5A output is generally for smartphones, 1.5A-2.0A output is generally for tablets. 2. How long do I need to charge the powerbank for the first time and subsequent time?/ How many times can a powerbank charge my phone? a) Powerbank is already pre-charged and ready to use. b) Re-charging time depends on the capacity of the powerbank, remaining power in the powerbank and the power supply. Example:.Powerbank: 13000mAh (0% remaining).Power Supply/ Input: 1000mA plug.Calculation: 13000mAh/ 800mA = minimum 16.25 hours (Why 800mA? An estimate of 20% power is consumed during the charging/ discharging process) c) Similar formula applies to calculate number of times a powerbank can charge a phone. Example:.Powerbank: 10000mAh (full at 90%).Phone Battery: 1500mAh.Calculation: (10000mAh x 90% x 80%) / 1500mAh = up to 5 times (Why 90%? Assuming the power bank is well maintained in good working condition and can conserve up to 90% power) (Why 80%? An estimate of 20% power is consumed during the charging/ discharging process) Note that the calculation is based on normal condition whereby the powerbank or device (phone/ tablet) is not in use during charging process. A running device generally consumes power therefore if your device is actively in use during the charging process, the charging performance may not meet the expectation. The above calculations are examples made simple for easy reference. Accuracy may vary.
Images in order1.commercial PB (upgraded from 1200 to 2800 mah)2.commercial PB Kit(modified by adding switch and upgraded 2400 to 4000mah)3.commercial PB under my testing.
Step 3: Homebrewed Powerbanks
Image1-using 8 AA Nimh 2800 mah batteries Image2-using 318650 2200mah Li-ion batteries
ibles can be found on my DIYs
Step 4: Difference Between Li-ion and Li-Po
Lithium-ion batteries use a variety of cathodes and electrolytes. Common combinations use an anode of lithium (Li) ions dissolved in carbon or graphite and a cathode of lithium cobalt-oxide (LiCoO2) or lithium manganese-oxide (LiMn2O4) in an liquid electrolyte of lithium salt. Because they use a liquid electrolyte, lithium-ion batteries are limited in shape to either prismatic (rectangular) or cylindrical. The cylindrical form has a similar construction to other cylindrical rechargeable batteries,Prismatic batteries have the anode and cathode inserted into the rectangular enclosure. The image link at illustrates this construction method. Lithium-Ion-Polymer batteries are the next stage in development and replace the liquid electrolyte with a plastic (or polymer) electrolyte. This allows the batteries to be made in a variety of shapes and sizes. The significant advantages of lithium-ion batteries are size, weight and energy density (the amount of power the battery can provide). Lithium-ion batteries are smaller, lighter and provide more energy than either nickel-cadmium or nickel-metal-hydride batteries. Additionally, lithium-ion batteries operate in a wider temperature range and can be recharged before they are fully discharged without creating a memory problem. As with most new technology, the disadvantage is pricing. Currently, lithium-ion and lithium-ion-polymer batteries are more expensive to manufacture than standard rechargeable batteries. Part of this expense is due to the volatile nature of lithium. Lithium-ion batteries are most commonly used in applications where one or more of the advantages (size, weight or energy) outweigh the additional cost, such as mobile telephones and mobile computing devices. Lithium-ion-polymer batteries are used when the battery needs to be a particular shape. Lithium-Ion Battery Characteristics Type Secondary Chemical Reaction Varies, depending on electrolyte. Operating Temperature 4∫ F to 140∫ F (.20∫ C to 60∫ C) Recommended for Cellular telephones, mobile computing devices. Initial Voltage 3.6 7.2 Capacity Varies (generally up to twice the capacity of a Ni-Cd cellular battery) Discharge Rate Flat Recharge Life 300. 400 cycles Charging Temperature 32∫ F to 140∫ F (0∫ C to 60∫ C) Storage Life Loses less than 0.1% per month. Storage Temperature.4∫ F to 140∫ F (.20∫ C to 60∫ C) ï The chemical construction of this battery limits it to a rectangular shape. ï Lighter than nickel-based secondary batteries with (Ni-Cd and NiMH). Lithium-Ion-Polymer Battery Characteristics Type Secondary Chemical Reaction Varies, depending on electrolyte. Operating Temperature Improved performance at low and high temperatures. Recommended for Cellular telephones, mobile computing devices. Initial Voltage 3.6 7.2 Capacity Varies depending on the battery; superior to standard lithium-ion. Discharge Rate Flat Recharge Life 300. 400 cycles Charging Temperature 32∫ F to 140∫ F (0∫ C to 60∫ C) Storage Life Loses less than 0.1% per month. Storage Temperature.4∫ F to 140∫ F (.20∫ C to 60∫ C) ï Lighter than nickel-based secondary batteries with (Ni-Cd and NiMH). ï Can be made in a variety of shapes.
Step 5: Facts About Lithium Ion:
Is Lithium-ion the Ideal Battery?For many years, nickel-cadmium had been the only suitable battery for portable equipment from wireless communications to mobile computing. Nickel-metal-hydride and lithium-ion emerged In the early 1990s, fighting nose-to-nose to gain customer’s acceptance. Today, lithium-ion is the fastest growing and most promising battery chemistry. The lithium-ion battery Pioneer work with the lithium battery began in 1912 under G.N. Lewis but it was not until the early 1970s when the first non-rechargeable lithium batteries became commercially available. lithium is the lightest of all metals, has the greatest electrochemical potential and provides the largest energy density for weight. Attempts to develop rechargeable lithium batteries failed due to safety problems. Because of the inherent instability of lithium metal, especially during charging, research shifted to a non-metallic lithium battery using lithium ions. Although slightly lower in energy density than lithium metal, lithium-ion is safe, provided certain precautions are met when charging and discharging. In 1991, the Sony Corporation commercialized the first lithium-ion battery. Other manufacturers followed suit. The energy density of lithium-ion is typically twice that of the standard nickel-cadmium. There is potential for higher energy densities. The load characteristics are reasonably good and behave similarly to nickel-cadmium in terms of discharge. The high cell voltage of 3.6 volts allows battery pack designs with only one cell. Most of today’s mobile phones run on a single cell. A nickel-based pack would require three 1.2-volt cells connected in series. Lithium-ion is a low maintenance battery, an advantage that most other chemistries cannot claim. There is no memory and no scheduled cycling is required to prolong the battery’s life. In addition, the self-discharge is less than half compared to nickel-cadmium, making lithium-ion well suited for modern fuel gauge applications. lithium-ion cells cause little harm when disposed. Despite its overall advantages, lithium-ion has its drawbacks. It is fragile and requires a protection circuit to maintain safe operation. Built into each pack, the protection circuit limits the peak voltage of each cell during charge and prevents the cell voltage from dropping too low on discharge. In addition, the cell temperature is monitored to prevent temperature extremes. The maximum charge and discharge current on most packs are is limited to between 1C and 2C. With these precautions in place, the possibility of metallic lithium plating occurring due to overcharge is virtually eliminated. Aging is a concern with most lithium-ion batteries and many manufacturers remain silent about this issue. Some capacity deterioration is noticeable after one year, whether the battery is in use or not. The battery frequently fails after two or three years. It should be noted that other chemistries also have age-related degenerative effects. This is especially true for nickel-metal-hydride if exposed to high ambient temperatures. At the same time, lithium-ion packs are known to have served for five years in some applications. Manufacturers are constantly improving lithium-ion. New and enhanced chemical combinations are introduced every six months or so. With such Rapid progress, it is difficult to assess how well the revised battery will age. Storage in a cool place slows the aging process of lithium-ion (and other chemistries). Manufacturers recommend storage temperatures of 15∞C (59∞F). In addition, the battery should be partially charged during storage. The manufacturer recommends a 40% charge. The most economical lithium-ion battery in terms of cost-to-energy ratio is the cylindrical 18650 (size is 18mm x 65.2mm). This cell is used for mobile computing and other applications that do not demand ultra-thin geometry. If a slim pack is required, the prismatic lithium-ion cell is the best choice. These cells come at a higher cost in terms of stored energy. Advantages ï High energy density. potential for yet higher capacities. ï Does not need prolonged priming when new. One regular charge is all that’s needed. ï Relatively low self-discharge. self-discharge is less than half that of nickel-based batteries. ï Low Maintenance. no periodic discharge is needed; there is no memory. ï Specialty cells can provide very high current to applications such as power tools. Limitations ï Requires protection circuit to maintain voltage and current within safe limits. ï Subject to aging, even if not in use. storage in a cool place at 40% charge reduces the aging effect. ï Transportation restrictions. shipment of larger quantities may be subject to regulatory control. This restriction does not apply to personal carry-on batteries. ï Expensive to manufacture. about 40 percent higher in cost than nickel-cadmium. ï Not fully mature. metals and chemicals are changing on a continuing basis. The lithium polymer battery The lithium-polymer differentiates itself from conventional battery systems in the type of electrolyte used. The original design, dating back to the 1970s, uses a dry solid polymer electrolyte. This electrolyte resembles a plastic-like film that does not conduct electricity but allows ions exchange (electrically charged atoms or groups of atoms). The polymer electrolyte replaces the traditional porous separator, which is soaked with electrolyte. The dry polymer design offers simplifications with respect to fabrication, ruggedness, safety and thin-profile geometry. With a cell thickness measuring as little as one millimeter (0.039 inches), equipment designers are left to their own imagination in terms of form, shape and size. Unfortunately, the dry lithium-polymer suffers from poor conductivity. The internal resistance is too high and cannot deliver the current bursts needed to power modern communication devices and spin up the hard drives of mobile computing equipment. Heating the cell to 60∞C (140∞F) and higher increases the conductivity, a requirement that is unsuitable for portable applications. To compromise, some gelled electrolyte has been added. The commercial cells use a separator/ electrolyte membrane prepared from the same traditional porous polyethylene or polypropylene separator filled with a polymer, which gels upon filling with the liquid electrolyte. Thus the commercial lithium-ion polymer cells are very similar in chemistry and materials to their liquid electrolyte counter parts. Lithium-ion-polymer has not caught on as quickly as some analysts had expected. Its superiority to other systems and low manufacturing costs has not been realized. No improvements in capacity gains are achieved. in fact, the capacity is slightly less than that of the standard lithium-ion battery. Lithium-ion-polymer finds its market niche in wafer-thin geometries, such as batteries for credit cards and other such applications. Advantages ï Very low profile. batteries resembling the profile of a credit card are feasible. ï Flexible form factor. manufacturers are not bound by standard cell formats. With high volume, any reasonable size can be produced economically. ï Lightweight. gelled electrolytes enable simplified packaging by eliminating the metal shell. ï Improved safety. more resistant to overcharge; less chance for electrolyte leakage. Limitations ï Lower energy density and decreased cycle count compared to lithium-ion. ï Expensive to manufacture. ï No standard sizes. Most cells are produced for high volume consumer markets. ï Higher cost-to-energy ratio than lithium-ion
Step 6: Powerbank Accesories
image 1. bundled with commercial Powerbanks.image 2- additional(option only) accesory to extend compatibility to any devices.
The best power banks 2022
Choosing a power bank can be a minefield. There are cheap ones, pricey ones, and sometimes you’re paying simply for a name – but there’s a lot more to finding the perfect portable charger than looking at price alone.
Some other things you might consider include speed, both in charging your connected device and recharging the bank when it empties. Capacity is important, too: it needs to be high enough to get your through the day with juice to spare – even share – without weighing down your or bag.
Ports and connections matter, too. What are you charging? A phone, a laptop, a watch? The number and range of ports is important, and if you want to avoid carrying multiple cables then you could look for a version with built-in cables or wireless charging.
While we care about design, it’s actually much lower on our priority list than the things we mention above – unless, of course, we have need for a particularly rugged model or something that supports solar charging because we’re going to be away from mains power for an extended period. That’s not to say we won’t appreciate added extras such as an LCD screen and waterproofing – don’t you want the coolest and most convenient power bank you can get for your money?
These days, it’s even possible to rent power banks as and when you need them (check out ChargedUp). Mind blown. To ensure you get the very best power bank for your needs, whatever that looks like, read on for more detailed buying advice below our chart.
Best power bank reviews
Zendure SuperMini X3 – Best 10000mAh Power Bank
The Zendure SuperMini X3 certainly isn’t the cheapest 10000mAh power bank around, but it makes up for that in specs.
The headline is the 45W USB-C PD charging – for both input and output. That means you can re-charge the power bank itself in just an hour or so, but also that this is fast enough to meet the max charging speeds on most Apple and Samsung phones, and can even keep many laptops running.
The same port also supports the PPS standard at up to 33W speeds.
There are also two USB-A ports, one at 18W and another at 15W, and you can use all three ports simultaneously with 15W speeds from each.
Throw in the small LCD display to report battery life and the light and compact design (in a range of four colours, no less) and it’s easy to see why you might want to spend a little extra for the SuperMini X3.
Charmast 10,400mAh Power Bank – Best Value Power Bank with LCD
There was a time when power banks with LCD displays were rather expensive, but have now come down as the screens filter through to even affordable models like this.
The power bank also has three outputs, which will come in handy if you have multiple devices to charge. There are two full-size USBs, plus a USB-C PD port that can act as both input and output, and all three support 18W Quick Charge – although only one at a time.
On the side is an additional Quick Charge 2.0-compatible Micro-USB, which can also be used for charging the bank. It will charge in about 3.5 hours with a Quick Charge/PD adapter, but about 5.5 hours with a standard 10W charger.
The downside of the design is that it’s a bit bigger than many of the super-slim, similar-capacity models on the market. This Charmast is roughly the same width as a phone, but a little shorter and a fair bit chunkier. It weighs in at 228g, which you may decide is better suited to a bag than your
Charmast supplies a soft mesh carry case and a short USB-A to USB-C cable in the box, a nice touch.
Zendure SuperMini Go
- Interesting camera-inspired design
- Supports 15W wireless charging
- Strong device support
- Available only via IndieGoGo (for now)
- LCD is a little dim and can be difficult to read
The Zendure SuperMini Go is something a little different: a power bank that tries very hard not to look like one.
Zendure’s design is inspired by classic cameras, which is if nothing else a fun way to incorporate the large ring required for wireless charging – which here sits right where a camera lens would be. Instead of a viewfinder, there’s a rear LCD display to show battery percentage – though be warned that this is quite dim and hard to read.
It’s available in silver and black finishes, along with our more out there ‘Sunset Cyan’ gradient.
The SuperMini Go isn’t all about looks though, and it has some solid specs to match. The total capacity is 10,000mAh, and in addition to 15W wireless charging (with a magnet to keep phones steady) there’s 20W USB-C charging and 22.5W USB-A charging.
Compatibility is impressive too – not only will this work with both iOS and Android devices, but the ‘X-Charge’ mode is capable of topping up lower power devices like wearables and headphones, which not all power banks support.
The SuperMini Go is available now for backers on IndieGoGo with discounted launch pricing from 44 (down from an official price of 69), but with Zendure’s track record it’s very likely this will be in stores including Amazon before long.
JIGA 30,000mAh Power Bank – Most Versatile Power Bank
JIGA is a new name to us in terms of power bank tech, but its 30,000mAh power bank is interesting for a number of reasons – and not least the huge capacity, which will be some comfort on trips away from mains power.
While it’s something of a throwback to power banks from a couple of years back, with its built-in LED flash (certainly useful for camping trips) and durable but plasticky design, it also takes us back to the days where you didn’t have to sacrifice ports for portability.
It’s surprisingly small for such a high-capacity bank, but it’s more bag- rather than.friendly.
The JIGA has USB-C, Micro-USB and Lightning inputs, allowing you to fill its battery using whatever cable you have to hand. It’s a shame that the USB-C port doesn’t also work as an output, but there are three full-size USB-A outputs, each rated at 10.5W.
This isn’t the Power Delivery speeds we’re becoming increasingly familiar with today, but it’s plenty fast for charging a phone (or multiple phones).
If all you need is a healthy stream of power to keep topped up a number of mobile devices, this JIGA power bank will be a very handy device to have around.
Anker PowerCore Essential 20,000 PD – Best 20,000mAh Power Bank
Hailing from Anker, a respected brand in the power bank market, this 20,000mAh portable charger represents very good value at this capacity.
The 345.5G Essential is a black plastic brick, though relatively compact for the amount of power it can hold. It has a textured top surface that improves grip in the hand, as well as the overall appearance.
We’re pleased to find support for Power Delivery, but do note that it’s only up to 18W, and therefore not likely to be sufficient to charge a USB-C laptop. Still, for quick-charging a phone or tablet, this is a useful device.
A full-size USB output that uses Anker’s PowerIQ smarter charging algorithm is joined by a USB-C port that is both input and output. On top is a power button with four integrated LEDs that reveal remaining capacity, and you can use this to enter a trickle-charging mode suitable for smartwatches and earbuds.
A USB-C to USB-C cable and soft mesh carry case are provided in the box, which is a nice touch.
Anker PowerCore III 10K Wireless – Best Wireless Power Bank
The Anker PowerCore III 10K Wireless is a Qi wireless charger with a special feature: you can use it as a portable power bank, too, which can be super handy.
You can use it at home or work plugged in, and carry it around with you for wired or wireless charging when you are away from a power socket. Because it’s wireless, there’s no need to carry a cable around with you.
As the name suggests, the PowerCore III 10K has a decent sized 10,000mAh battery, which should offer at least three charges from the power bank before it needs recharging itself.
The wireless charger is rated at 10W. Place your device on the centre of the circle. We didn’t find the placement too sensitive, as some wireless chargers can be. It’s not auto-start, though – as a power bank it requires you to push the button first.
You can also charge from the two USB-A ports at one end – at a total of 18W, so charging two or three (one wireless, two wired) devices will split that power output.
Anker PowerCore Magnetic 5K – Best MagSafe Power Bank
This portable wireless charger is one of the best accessories you can get for your iPhone.
In essence, it’s a 5,000mAh palm-sized power bank that will charge your compatible iPhone simply by snapping it onto the back with MagSafe.
It works through some cases, charges over USB-C, comes in a range of colours and, even if you don’t have MagSafe, can be used to charge almost anything via cable.
A handy set of LEDs indicates how much charge the PowerCore has remaining.
Moshi IonGo 5K Duo – Best Design
It’s expensive, but you’ll pay out for the IonGo 5K Duo from Moshi if style is as important to you as is functionality.
Almost identical in design to the IonGo 5K before it, but here with both USB-C and Lightning cables built-in (hence the name Duo), the Moshi is an undeniably cool-looking power bank that comes tucked away inside a vegan-friendly soft leather case with a magnetic clasp and an anodised aluminium faceplate.
The additional cable means it’s now suited to Android as well as iPhone users, although as before this is Made For iPhone-certified.
This is a truly premium device with a colossal 10-year warranty going a long way to account for its higher asking price. It’s also possibly the dinkiest 5,000mAh power bank we’ve seen, suggesting there are some serious high-tech components inside.
At this capacity, expect a full charge for any Android phone, and potentially two for iPhone. Moshi claims the bank will also retain that power for up to 27 months when left unused.
Charging is up to 15W over USB-C and 12W over Lightning. Use Lightning and USB-C together and you’ll see slightly slower charging speeds, with a max total output of 3.4A (17W).
You can also use the USB-C cable for recharging the bank, again up to 15W. Better still, the Moshi supports passthrough charging, allowing you to charge both it and a connected device at once, but given that there’s no separate input here that’s going to work only with iPhone.
The Duo is currently out of stock at Amazon, but you can still pick up the iPhone model.
Chargeasap Flash Pro / Flash Pro Plus – Fastest Charging Power Bank
- Unbeatable recharging speed
- High-capacity (25,000mAh)
- Range of outputs
- 5-year lifespan
- Expensive
- Bulky and heavy
- Attracts fingerprints
- No charger or cable supplied
These graphene-composite power banks are able to charge cooler than ordinary lithium-polymer batteries, and thus can do significantly faster: you’ll get to 80% of these 25,000mAh batteries in just 45 minutes.
In addition to this there is a healthy smattering of ports, with three USB-Cs running at 100W, 60W and 20W, a 50W USB-A that supports Quick Charge 3.0 and SVOOC, plus wireless charging. You get a 15W MagSafe pad and a 5W Apple Watch charger in the Flash Pro Plus, and a 15W Qi charger in the Flash Pro.
Down sides include an expensive price tag, and a bulky, heavy design, but for sheer performance and functionality the Chargeasap banks are among the most capable we’ve ever tested.
FAQ
What capacity power bank do I need?
Don’t fall into the trap of thinking a 3,000mAh power bank will give your 3,000mAh battery smartphone a full charge, and that a 9,000mAh power bank will charge it three times. No portable charger runs at 100% efficiency. In truth, most average between 60- and 70%, with the best-performing models able to reach 80- or 90%. Wireless charging models may be less efficient still.
To work out what capacity bank you need, first check the spec of the device you want to charge to find out its battery capacity, then decide how many times you want to be able to charge it. For a rough estimate, calculate Connected device battery capacity x Number of recharges x 1.6 = Minimum power bank capacity you should look to buy.
As a rule of thumb, a 5,000mAh bank is a single-charge device, 10,000mAh hits the sweet spot between capacity and portability, and you want to look for closer to 20,000mAh for a laptop. We’ve got some of those high-capacity power banks here – just don’t try to stuff any of them in your !
How long does it take to recharge a power bank?
The time required to recharge a power bank will depend on its capacity, what you are using to recharge its battery and whether or not it’s empty.
For the fastest charging you should look to the new breed of power banks that support graphene technology and charge over a DC input (such as the Chargeasap Flash Pro – a 25,000mAh bank that can get to 80% in 45 mins and 100% in 70 mins), but these tend to be pricey.
For mainstream power banks, the fastest you’ll find is a USB-C inout/output that supports Power Delivery. This standard now goes up to a maximum of 240W, but in portable chargers you should expect to find an 18W port. Using such a port, the average 10,000mAh power bank might recharge in 2-3 hours from empty.
The cheapest models still tend to charge over Micro-USB, usually at around 10-12W. Avoid 5W power banks like the plague unless they are very low in capacity or you’re not in a rush.
What is passthrough charging?
Passthrough charging allows you to simultaneously charge devices connected to a power bank and the power bank itself. It’s a very handy solution if you are short on mains power outlets and need to get multiple devices charged up overnight, for example. However, not all power banks support it, so be sure to check the spec of your portable charger before you buy.
How do I know how much power is left in my power bank?
Assuming you know how much capacity it had when full, you can work out how much power remains either through a series of LEDs on the casing (usually activated by plugging in a device to charge or pressing a button on the side), or via the LCD if your power bank supports one. LCDs are preferrable, because they give a more accurate readout, particularly when it comes to higher-capacity power banks.
What are GaN power banks?
GaN is short for gallium nitride. It requires fewer components than traditional silicone chargers, which means power banks that use the technology can be less bulky and more efficient. If portability is your primary concern, then as well as considering the power bank’s capacity you should also look for one that uses GaN.
What charging speed should I look for in a power bank?
The first power banks on to the market ran at 5W, which is the same speed as the original iPhone chargers (aka slllllloooooowwwww). We wouldn’t recommend anything below 10W these days. This speed is known as ‘fast charging’, and it’s still rather common in cheaper models, but it’s not really the fast charging we’ve become accustomed to today. So many of the latest smartphones now support super-fast wired charging, and it seems crazy not to buy a portable charger that supports that top speed if possible.
The standard your phone uses to achieve its top charging speeds is important here. Some have proprietary technologies that work only with accessories manufactured and sold by that company. Some offer fast charging through Quick Charge or Power Delivery. Some support neither Quick Charge nor Power Delivery, but do support protocols such as PPS (Programmable Power Supply) or SCP (Super Charge Protocol). Make sure the portable charger you buy matches the fast charging standard supported by your phone.
The term Power Delivery does not in itself denote a performance rating. It could be capable of delivering anything between 18W and 240W. This is particularly important if you’re looking to charge a USB-C laptop – anything under 30W won’t cut it, many laptops will refuse to play ball below 45W or even 60W, and some larger laptops might require 90W. You will need to check the spec of your laptop to know what speed it requires.
At the other end of the scale, if you need to charge a low-power device such as a smartwatch or a pair of wireless earbuds, look out for a power bank that is certified for low-power devices. Many of those that are not will simply cut out when you try to charge these devices, because they aren’t able to detect a significant drain on the battery.
Power bank manufacturers rarely provide the speed of their outputs in watts. Instead you’ll see a rating in amps, which you multiply by the voltage rating (usually five) to get the rating in watts. So 2A x 5V = 10W.
What is Power Delivery?
USB-C and USB PD are often confused, but the important thing to remember is that USB-C is a reversible connection type, while USB PD is a power delivery specification, overseen by the USB Implementers Forum (USB-IF) and often expressed simply as ‘PD’. With version 3.1 of the specification, Power Delivery is able to carry up to 240W of power plus data over USB-C (previously limited to 100W), but devices that support Power Delivery can range from 18W right up to 240W.
What is Quick Charge?
Quick Charge is a Qualcomm fast-charging protocol that runs on the Snapdragon processors we see inside many smartphones, hence it has become commonplace in the mobile market.
The latest version is Quick Charge 5, which operates at up to 100W and supports USB PD PPS. However, while they are often seen together, Quick Charge and Power Delivery are not the same thing.
Quick Charge 5 is a massive jump up from Quick Charge 4/4, more efficient and able to run cooler and safer, and Qualcomm says it can get a device to 50% in just 5 mins. It is backwards-compatible with earlier versions of the protocol, including 18W Quick Charge 2/3, which are still very common in power banks.
Which outputs should I look for in a power bank?
The type and number of outputs you will need on a power bank depends entirely on what device or devices you want to charge. Pretty much all power banks have a full-size USB output that you can use to plug in your own cable, but it’s not always going to be the fastest way to deliver a charge to your device. You’ll also find USB-C and Lightning outputs, magnetic wireless charging pads and AC outlets if you shop around. Some power banks even have built-in cables to stop you needing to carry around your own, though you will still need one handy to recharge the power bank itself.
Why is the maximum output of a power bank important?
Some power banks have multiple outputs for charging your connected devices, but few power banks are able to simultaneously support all of them at the top advertised speed. Watch out for those that have a lower maximum output than the sum of all ports together. Also be wary of those that have multiple outputs but a very low capacity – these aren’t really designed for plugging in multiple devices, only to be versatile.
What happens when my power bank is more powerful than my connected device?
There is no need to worry about plugging devices into ports that are capable of delivering more power than the device is able to accept, since USB devices will draw only the power they need. Many power banks include technology that is able to intelligently dole out this power among ports more appropriately, depending on what devices you are attempting to charge (often known as Power IQ or similar).
Can I take a power bank on a plane?
Yes, but it must be in your hand luggage, and if it is higher in capacity than 27,000mAh (100Wh) you will need to check with the airline before flying. Make sure you take it out your bag as you pass through security. If a power bank is damaged then it will not be allowed on the plane as it could become a safety hazard. You should also ensure the specifications are clearly printed on the side of its case, as is the norm.
We’ve put together a range of articles to help you choose the best charging tech for the mobile devices you carry everywhere. You’ll also like:
- For charging away from home:Power banks for laptops | Travel adaptors
- Best Wall Desktop Chargers:For phones tablets | For laptops
- For convenience:Best wireless chargers
- Best charging cables:Micro-USB | USB-C | Lightning