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How to Choose the Right Power Bank?
For a longer trip, you may want to choose a power bank with a higher mAh and wattage. Power banks with higher mAh can last for more charge cycles before needing a recharge themselves. This is especially helpful for trips that have a long travel time where you may not have guaranteed access to wall outlets to power your devices.
We recommend anywhere from 20,000 mAh to 30,000 mAh and 65W to 100W for trips with extended travel time. This level of charging capacity helps give you peace of mind during travel (which is already stressful as it is) and guarantees that you will not have to rely on wall sockets for your devices or for a recharge to your power bank.
For a shorter trip, you may not need as much mAh and wattage in your power bank. We recommend a range of 6000 mAh to 10,000 mAh and 20W to 45W for trips with a shorter travel time. These types of power banks hold plenty of energy to guarantee 1 or 2 full charges to your smartphone without needing to be recharged. That should be plenty of power to get you to your destination and within reach of a wall outlet.
Devices are particularly important during business trips. You may need your phone to link up with colleagues and your computer to get tasks done. For that reason, you may want to choose a power bank that has a high mAh to last multiple charging cycles, and that can power a variety of devices.
We once again recommend a 20,000 mAh to 30,000 mAh and 65W to 100W power bank for business trips. It may also be useful in these cases to have multiple power banks dedicated to each of your devices. Our Baseus Blade Laptop Power Bank has a charging capacity of 20,000 mAh and 100W, making it an excellent source of energy for your laptop while your phone is linked up to another portable charger.
All You Need to Know About Power Bank
Power banks allow you to charge your devices on the go. With a power bank in hand, you can juice up and continue to use your devices without worrying whether or not there will be outlets nearby to keep you going.
Power banks, also known as portable chargers, operate in a similar fashion to your bank account, hence their name. They act as a storage facility for energy. You can use the electrical energy stored within your power bank to charge your devices anytime and anywhere. This is largely thanks to a special type of circuit contained within the power bank itself that controls the flow of energy.
The process is really quite simple and consists of 3 parts: energy absorption, energy storage, and energy release.
Before you head out on any excursion, whether it’s a business trip, a day out with friends, or any other instance where you may find yourself without ready access to outlets, charge up your power bank through an external power supply like a wall socket. The energy will be stored within the portable charger in a chemical form, ready to be passed into your device at any moment when it is connected to the charger via an output port.
A fast charging power bank is exactly what its name implies: a portable charger that can juice up your devices at a much faster rate than simple wall chargers. These power banks utilize a higher voltage and essentially increase the number of watts being pumped into your device to charge it up more quickly than average.
Wireless power banks are extremely convenient for those who hate traveling around with tons of wires. Rather than getting all tangled up in wires every time you need to charge your devices, simply rely on a wireless power bank. Though they do require a USB to charge themselves, these handy gadgets have the ability to charge your devices through contact alone, with no wired connection required. Battery cases that attach to the back of your phone are one common example of wireless power banks.
To understand the question, we first need to take a look at mAh. The unit mAh is also known as a milliamp hour, and it refers to the charging capacity of a power bank. It indicates how much energy can be transferred from your power bank to another device over time. And, of course, the higher the mAh of a power bank, the more energy it can provide.
Today’s average smartphone has a battery capacity of 2,800 mAh. With that number in mind, let’s break down the charging output you can expect from these common types of power banks:
- 6000 mAh: 2 full smartphone charges before power bank recharge required.
- 10,000 mAh: About 3.5 smartphone charges before a power bank recharge is required.
- 20,000 mAh: 7 full smartphone charges before power bank recharge is required.
- 30,000 mAh: Nearly 11 full smartphone charges before a power bank recharge is required.
The lifespan of a power bank may vary depending on various factors, such as quality, build, battery capacity, type of battery, and how the power bank is used. The average lifespan range for a power bank may be anywhere from 1.5 to 3 years or 300 to 1000 charge cycles. It’s important to remember that charge cycles are likely the most accurate representation of lifespan. This is because some may use a power bank more frequently than others, making years an inaccurate depiction of the lifespan that does not factor in usage.
To increase the lifespan of your power bank, remember to take good care of it. Here are a few useful tips to help you make the most out of your portable chargers:
- Do not use a power bank to charge your devices above 80%.
- Do not leave power banks in extremely hot or cold temperatures.
- Do not let your power bank reach 0%.
- Do not bring your power bank in contact with liquids of any kind.
With power banks and other types of batteries, the first thing you need to worry about in terms of wattage is the watt-hour. Watt-hours indicate how much energy you can get out of a battery and the rate at which that energy will be transmitted from the power bank to your device.
The second thing to worry about when it comes to wattage in your power bank is the overall energy capacity. Oftentimes, the wattage of a power bank refers to its maximum charging output. This may be higher or lower depending on how the power bank is being used. When used as a means of gaining energy from an external source, the maximum wattage output may be higher than when it is used as a power bank on its own. So, if you used a dual 45W power bank, you might expect the energy output to reach up to 45W when used as a charging station from an external source and up to 30W when used as a standalone power bank.
If you’re wondering how to charge your power bank, we’re here to help you there too. To juice up your portable charger, simply connect it to an external power source like a wall socket, just like you would with your devices. This will allow it to absorb and subsequently store electrical energy to then be transferred to your device of choice later on when needed.
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.
How to Use a Power Bank: Here’s Everything You Need to Know
You know that anxious feeling when the “low battery” notification pops up on your screen? There’s something about it that can send your mind into a tailspin. Even worse, sometimes you don’t have your charger, and you’re nowhere near an outlet! Luckily, there’s a handy tool out there to keep you fully charged: the power bank. If you’re looking to learn the basics of power banks, you’ve come to the right place. Let’s get right into it!
How to Charge a Power Bank Top
Charging a power bank is pretty straightforward, especially since most of them come with instruction manuals. However, if yours didn’t come with one, you can still charge it without breaking a sweat!
Here is the best way to charge a power bank:
- Attach the cable to the power bank.
- Connect the other side of the cable to your power source.
- Your power bank should begin charging.
- Once charged, unplug the power bank from the wall and your phone.
- Step 1: Attach the Cable Attach the cable that came with your power bank to the device itself. Most of the time, the port that connects to your power bank is a micro USB.
- Step 2: Plug Into Power Source Next, plug in the other side of the cable (usually a standard USB) into your wall plug or your computer. Some wall outlets even have USB ports built in, so if you have one of those nearby, you won’t need a wall adapter!
- Step 3: Start Charging Your power bank should start charging. If it has an indicator light, keep a close eye on it. Once it is fully charged, all the indicator lights will illuminate.
- Step 4: Unplug the Charger Unplug the charger from the wall or your computer once all indicator lights are illuminated.
How Often Should You Charge a Power Bank? Top
A general rule of thumb is that the more you charge your power bank, the shorter the lifespan of the device. You should charge your power bank only as often as is necessary. If you use your power bank sparingly, at least charge it once every 3 months to keep the battery active.
Can I Use My Phone While Charging? Top
There shouldn’t be any harm in using your cell phone while it is charging. You may notice your phone getting a bit warm, but this is expected. It’s worth noting, however, that using your phone while it is charging may not result in a 100% charged battery since you are actively using the power source before the charge is complete. If you want your cell phone to be fully charged, it’s best to leave it alone while it powers up!
Why Do Some Power Banks Take Longer to Charge? Top
Some power banks take longer to charge because larger batteries have a bigger capacity to store energy. For example, a high capacity power bank with 20,000 mAh can take up to 40 hours to charge fully. Smaller power banks with 4,000 mAh may only take a couple hours to charge.
Think of it like a shot glass versus a tall drinking glass. It’s going to take a lot longer for a drinking glass to fill with water than it will for the shot glass!
How Long Should You Charge a Power Bank? Top
You should only charge your power bank for the amount of time it takes for it to get a full battery. Once the device is fully charged, you should unplug it from the power source. You can check the user manual to find out how your power bank indicates it has been fully charged, but most of them have some sort of light that shows the amount of power left in the battery.
The amount of time it takes for a power bank to reach its full capacity varies depending on the type. A heavy-duty power bank will take longer to charge than a smaller one. Generally speaking, it takes between 1 to 2 hours for a power bank to become fully charged!
Did You Know?
There are super powerful power banks on the market that allow you to power larger devices like televisions, curling irons, and oscillating fans!
Can I Charge My Power Bank Overnight? Top
You should avoid charging your power bank overnight whenever possible. It is unlikely to cause significant damage, but there is still a chance it could reduce the lifespan of your battery over time.
For lower-quality power banks, leaving your power bank plugged in after it is fully charged can cause overheating, especially if they are left to charge in direct sunlight. The safest option is to always unplug your power bank once it has reached full capacity!
How Can You Make Your Phone Charge Faster? Top
If you ever find yourself in need of a quick battery charge for your smartphone, there are a few steps you can take to make your phone charge faster. Always make sure your charging cables are plugged all the way in and your power bank has enough power to charge your phone.
Here are some tips to make your phone charge faster:
- Turn on airplane mode
- Don’t use your phone while charging
- Turn your phone off
- Use a high-capacity power bank
- Don’t use a wireless charger
Turn on Airplane Mode
Putting your phone on airplane mode is a surefire way to reduce charging time. This is because the setting turns off your phone’s Wi-Fi, Bluetooth, and cellular capabilities, which are all settings that drain your power! When your device is on airplane mode, it’s consuming less power, which makes for a quicker charge.
Don’t Use Your Phone While Charging
Using your phone while it’s charging is going to increase the amount of time it takes for your battery to be fully powered. It may be difficult to resist the urge to send that text message or check Instagram, but it’s worth the sacrifice if you want your phone to be fully charged!
Turn Your Phone Off
This strategy works similar to airplane mode because it turns off all the components in your phone that would otherwise be using your battery. When your phone is powered off, it’s able to reach a full charge much faster. Keeping your phone on while it’s charging is like trying to sleep while you’re hungry or thirsty—it’s going to be much more difficult!
Use a High-Capacity Power Bank
Some power banks are more powerful than others. The heavy-duty ones are going to make your phone charge much faster than the smaller ones! However, not all phones can handle a high-powered portable charger. It’s best to contact the manufacturer of your cell phone to see what they recommend. Charging your battery with too much power is never a good idea!
Don’t Use a Wireless Charger
Wireless chargers are a genius invention, but they’re not the best option if your goal is to charge your phone quickly. Plugging your phone in directly to a power bank or outlet is the quickest way to bring it back to life because it’s directly connected to the power source!
At the end of the day, any way you can prevent your phone from using battery while charging will ultimately help it charge faster! You might also notice your phone charging slowly with a low-capacity power bank. Be sure that your phone and power bank are compatible for the most efficient charging.
How Long Do Power Banks Last? Top
The amount of time a power bank lasts varies from product to product, but on average, a power bank should last at least a couple hundred charging cycles.
If you use your power bank frequently, you’re going to consume more charging cycles than someone who only uses their power bank occasionally. There are more durable power banks out there than can last upwards of 1,000 charging cycles, but most of the smaller ones on the market have a lifespan of 200 or 300 cycles. The age of the power bank also has a significant impact on how long it lasts. As the batteries inside of the device age, they become less effective.
How to Store a Power Bank Top
Power banks should always be stored in a cool location that isn’t exposed to direct sunlight, such as a desk drawer. According to Battery University, batteries achieve optimum service life if used at 68 degrees Fahrenheit, or slightly below that temperature.
If you store your power bank in direct sunlight or a warm environment like the glove box in your car, it won’t last as long. It’s also best to store your power bank in a pouch or case when not in use. This helps protect the charging ports so they do not accumulate dust or debris!
Should You Buy a Power Bank? Top
If you’re always on the go or find yourself with a low battery, you should buy a power bank! They come in handy during vacations, trade shows, plane rides, or any time you are using your phone away from an outlet. The type of power bank you’ll need depends on your lifestyle and how many devices you need to charge.
There’s no reason to not invest in a power bank. They’re like an extra insurance policy for your phone’s battery! Having one with you just in case is always a good idea.
The Bottom Line
Power banks make our lives a bit easier by ensuring we never run out of juice. By using them properly, you’re not only protecting the power bank, but you’re also getting the most out of your investment! A properly cared-for power bank will get you through those long meetings and plane rides. Just think of all the adventures you’ll go on while still having peace of mind!
Discharging at High and Low Temperatures. (n.d.). Retrieved March 25, 2020, from https://batteryuniversity.com/index.php/learn/article/discharging_at_high_and_low_temperatures
Summerson, C. (2017, December 4). Is Wireless Charging Slower Than Wired Charging? Retrieved March 27, 2020, from https://www.howtogeek.com/326094/is-wireless-charging-slower-than-wired-charging/
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Power banks are used for providing portable power to charge battery powered items like mobile phones and other similar items that have a USB interface: they can charge via USB, etc or wirelessly.
Power banks are commonplace and with our increasing use of battery powered equipment: everything from mobile phones to battery powered headphones, portable speakers, MP3 players can be charged via a power bank. They are effectively a portable charger. All they need is a USB charging interface.
Power banks come in a variety of shapes and sizes and to suit many different people and their needs.
In recent years, the use of power banks has risen significantly as they provide a very convenient and easy method of charging smartphones and other devices when away from mains power. Wireless charging power banks have also been introduced for those devices that can be charged wirelessly.
Power bank definition
Power banks, sometimes speed as powerbanks, can be defined as portable batteries that use circuitry to control any power in and power out. They can charged up using a USB charger when power is available, and then used to charge battery powered items like mobile phones and a host of other devices that would normally use a USB charger.
The name power bank can be likened to a financial bank where funds can be deposited, stored, and withdrawn when needed. These items are also often referred to as portable chargers, as they can charge items like mobile phones without the need to be connected to the mains during charging, although they will need to be charged, and this normally requires a mains charger.
Power bank types
There are a few different types of power bank portable charger that can be bought. Obviously the size is one of the main criteria, but there are some other categories that can be considered.
The main types of USB power banks include the following:
- Universal or standard power bank: These are the normal power bank portable chargers which are available in the stores and online. They are charged from the normal USB sources like USB chargers. These power banks are normally charged from a standard USB charger and there is some indication on the power bank as to its state of charge. This may be a row of small LED lamps or a simple alphanumeric display that indicates the charge level as a percentage of full charge. Typically a micro USB connector is used as the power in connection. Once fully charged the power bank can be used to charge other devices. There may be one of more Type A USB sockets (dependent upon the particular power bank) that can deliver charge to the devices needing charging.
- Solar power bank: As the name indicates, these solar power banks can use sunlight to charge up. To do this they have photovoltaic panels. These are really only able to trickle-charge the internal battery when placed in sunlight because the solar cells are relatively small, but nevertheless this can be a very useful function, but really only in very sunny or bright conditions. As the solar charging is slow, they can also be charged from a USB charger as well. The solar charging is a useful back-up, especially if you are travelling away from mains power. To ensure that the maximum amount of solar energy can be converted, some of the more advanced solar power banks have solar panels that fold out to present a larger area to the Sun. Even so, it can take over 24 hours to charge some, and as there obviously isn’t bright sun at night, or even all day, it can take a considerable while to charge. As charge times, capacities, etc vary considerably, it is always best to take a close look at the figures, if there is a possibility of buying one. Like the standard wired power bank, these solar powered ones have standard Type A USB connectors for the output or outputs and a micro USB for the input from a USB charger.
- Wireless power bank: With many gadgets like phones, ear-pods and the like now having the capability to be charged wirelessly, this concept has been adopted by the power bank industry. It is possible to obtain powerbanks that are themselves charged from a standard USB source, but they are able to charge phones and other wireless charging compatible electronic devices wirelessly. These powerbanks use the Qi standard that has been adopted by virtually all electronic devices that can be charged wirelessly. The electronic device to be changed is placed on the power bank. orientation is often important, so check with the instructions, a button typically has to be pressed to turn on the wireless charging capability, and then it all proceeds until the device is charged. It is best to turn off the wireless charging power bank once the charging is complete and then the wireless charging circuitry is disabled and the powe rbank will not be discharged unnecessarily.
Power bank lifetime
There are two main forms of lifetime that are associated with power banks.
- Charge discharge cycles: Any rechargeable battery will gradually wear out. Normally the lifetime of a battery is quoted in terms of the number of charge discharge cycles it can undergo before its performance falls by a given degree. Some cheaper power banks may only have a life of 500 or so charge discharge cycles, but better ones will have lifetimes of many more charge discharge cycles.
- Self discharge time: All battery cells, whether rechargeable or primary have a certain level of self discharge. For rechargeable batteries these days with their own control circuitry, a small amount of power is required to keep these circuits alive. As a result there is only a finite time that a battery will remain charged.
Power bank charge current capabilities
The level of charge that can be stored in power banks has risen as the need has grown. Smartphones are one of the chief items to be charged by them, and n recent years the battery capacities have increased significantly to provide longer times between charge.
Older power banks had capacities of possibly 1000mA hours, where as some of the latest ones available can offer huge capacities of 25000 mA hours.
Also the current that can be delivered by them is large as well. Often they can deliver 2.5A, enabling them to provide a fast charge for many electronic devices.
Power bank battery technology
All power banks use rechargeable batteries based around lithium technology. Lithium-Ion and Lithium-Polymer batteries are most commonly used for power banks but don’t be surprised if other types start to hit the market before long. Battery technology is key to many new developments: everything from mobile phones to electric vehicles, and as a result it is quite likely there will be some spin-offs into power banks.
The two technologies that are currently used have slightly different properties:
- Lithium-ion: Lithium-Ion batteries have a higher energy density, i.e. they can store more electrical charge in a given size or volume, and are cheaper to manufacture, but they can have issues with ageing.
- Lithium-polymer : Lithium-polymer power banks do not suffer from ageing to the same extent so are a better choice. However they are more costly to manufacture and as a result they may not suit all budgets. Sometimes it may be that it is best to spend less, especially if they are likely to be accidentally lost.
Both forms of power bank work well, but it is a balance between cost and performance.
Power bank portable chargers are particularly useful as they enable battery powered items to be charged on the go. As it is not always possible to reach a mains power point every time a mobile phone or other battery powered item needs charging, these power banks are have now become an established product and they are very useful, especially when travelling.