DL Fast Charging Power Bank 27000mah-DL104. Power bank 27000mah

DL Fast Charging Power Bank 27000mah-DL104

The latest model, high a capacity power bank! Very fast charger! Outstanding quality and value for money!

  • 27000mah capacity
  • 2.1A-2 Dual USB output
  • Comfortable handheld
  • LED Display
  • 5V Input / Output
  • Overvoltage Protection

What’s in the box 1 x Powerbank

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Lumenier Power Bank Pro 225

The Lumenier Power Bank Pro 225 is a portable fast charging solution designed to be a power source for multiple types of devices to meet all of your FPV charging needs. Wirelessly charge your phone, fast charge your laptop, and power your drone battery charger all with this battery bank!


Available on most orders over 99

About this product

The Lumenier Power Bank Pro 225 is a portable charging solution designed to be a power source for multiple types of devices. This power bank can be used to charge your laptop, RC charger, phone, headphones, and any other compatible device with USB-C, USB-A, or XT-60 connections. This power bank features a 27000mAh capacity, 225W high-discharge output, 100W USB-C or DC input, and allows for simultaneous charging of up to three devices. The fast-charging technology helps you to power up on the go with much less wait time. Charge compatible phones or other devices through the wireless fast charging feature by simply centering your device on the outside of the power bank. The Lumenier Power Bank Pro is perfect for all of your charging needs and designed for the FPV pilot in mind!

Note: (Insert any product notes here in Red BOLD Italic. Example: First Shipment expected January 2022 or Electronics are Not Included.)

VIDEO: (Insert Video Title here in Bold)

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The Lumenier Power Bank Pro 225 comes with a high power XT-60 output (Max 225W) and a fast-charging USB-C output with a 3.0 power delivery protocol (Max 100W). The power Bank supports high-speed charging for various devices, such as RC Chargers, phones, headphones, iPad Pro series, iPhone series, Nintendo Switch, and more. This charger also supports laptop charging forthose that can be charged through a USB-C port, such as the MacBook series, Microsoft Surface series, and more.


The Power Bank Pro features an anti-slip silicone bumper casing that is removable as needed. This material helps protect your device while on the go.


This portable charger has a row of four blue and 1 orange LEDs that indicate the battery capacity and the status of the charging.


This device allows for fast wireless charging (15W) of compatible devices by centering the device on the outside of the power bank, as indicated by the lightning bolt symbol.


The Power Bank Pro has a high capacity of 27000mAh with (97.2wh) that allows for charging of up to three devices simultaneously and features USB-C and DC input with USB-C, USB-A, and XT-60 output.



  • Connect the device to the USB-C port for 3.0 fast charging. For optimal performance, use the provided cables.
  • For optimal charging make sure that only one device is connected to the power bank and that it supports variable voltage.
  • When connecting devices to the XT-60 output port make sure they support between 18V-25V input and up to 9A.
  • Laptops with greater than 100W USB-C input power may require a longer charging time.
  • Using USB-C to USB-A cable for charging this type of device is not recommended.

Featured Videos

Unboxing Video of Lumenier Power Bank Pro 225


No Air Shipping

Please note that shipping regulations have recently changed for batteries. We are no longer able to ship lithium polymer batteries via any Air shipping method. This includes all international destinations outside the USA. In the USA, you will only be presented with ground-based shipping options if your order contains a lipo battery. If you need to receive your order quickly and would like to ship with one-day or two-day shipping options, consider splitting your order up into an order of only batteries (shipping ground) and everything else.

Due to IATA shipping regulations, batteries shipping AIR must have a charge of less than 30%. A lithium polymer battery which stays in this state for long periods of time will become damaged. For this reason, GetFPV does not ship batteries using Air shipping.

If you want to ship batteries via air shipping, you can set up an account through our freight forwarding partner MyUS.com. Follow instructions on their website to learn more.

Review: ChargeTech – 27,000mAh Portable AC Battery Pack

AC Outlet power banks is a growing way to not only charge devices but it’s a great way to power devices as well. These kinds of chargers can be more than just being able to provide charging power to your smartphone or tablet.

Instead, they’re also able to act as a portable wall outlet with their built-in AC outlets. With this kind of tech, the freedom of taking your laptop and sitting freely anywhere in the library or perhaps taking it camping is where this kind of charger performs best.

There’s such a need for this kind of power, and when we don’t have it, it can make our experiences fall short of greatness.

This is the ChargeTech 27,000mAh portable power bank. It has quite a bit to boast about, but let’s find out if it’s all, not just a bluff.

Similar AC Power Banks:

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Power Capacity:

The power capacity is 27,000mAh and with Panasonic batteries being used, we’re confident that you’re going to be receiving close to that power. The charging speed you receive for the device you’re charging will determine the real power capacity that you’re able to get.

With that said, though the charging speed out of the two USB Ports is combined to be the only 2.4A, and AC Outlet can Output or rather power 85W.

So if you’re charging from either USB port, it won’t do much to the power capacity, because the Amperage current will only be at a possible max of 2.4A and that will not generate too much heat to provide a poor conversion rate.

Altogether if considering the usage of the USB ports and the AC Outlet at the same time, the Output power capacity that you’d be receiving would be 24,000mAh. Of course, that’s still a rough estimate because it will wholly depend on your usage of the power bank.

With that said, the power capacity from using the USB ports should provide you with enough power capacity to charge smartphones 5 times or more; plenty more times if you have a smartphone with a small battery capacity. Tablets can charge about 2 times, but that’s usually the case if you’re taking advantage of the entire power capacity.

DevicesChargeTech. 27,000mAh Portable AC Battery Pack (Output Capacity = 24,000mAh)Phone CapacityChargeTech. 27,000mAh Portable AC Battery Pack Left Over Capacity after One Charge

AC Outlet: 3 Prong Outlet

It’s basically like taking a wall outlet with you on the go. This AC Outlet can take a 3 prong plug, so you can use either or 3 prong devices or 2 prong ones to use with the outlet.

Although that’s true only if the power bank can power the device you’re connecting it to. The main thing to consider is the AC Outlet’s power delivery and how much Watts the device that you’re connecting the power bank to requires in order function.

To give you a general idea, 85Watts is going to be able to power small appliances like small fans, hair straighteners, a video game console like the Wii or Xbox One, and a Laptop charger being the most used device to use with the AC outlet.

So it’s important to know what devices you want to use with AC Outlet and more importantly whether or not they are being powered at 85 watts or lower. Anything over 85W and the AC Outlet will be rendered useless.

Two USB Outputs: Max Output 5V/2.4A

There are two USB charging Output ports with this power bank and it sounds really good but unfortunately, the max output of both of the ports combined is 5V/2.4A. Don’t be fooled by what ChargeTech has written on their website or the Amazon page.

The charging output is shared between both of the USB ports, so if you plug a tablet into one port and a smartphone into the other port, the tablet will not be charging at its max speed since power is being pulled to the smartphone as well.

If you want to charge a tablet like an iPad at max speed, then we recommend charging the iPad alone; this way, the iPad will be able to draw the full 2.4 Amp current.

If you’re charging two smartphones using the USB ports, then you can most likely expect both of the smartphones to take 1.0A or 1.2A to be more precise. However, it’s best to connect just a single phone even in this case because most smartphones nowadays can charge beyond 1.0A charging speed.

Input Charging: 20V/2A

The power bank doesn’t use the traditional Micro-USB Input port to recharge, instead, you have to charge it with a DC power cord that comes with the power bank charger. So even though the recharging can’t be done using a Micro-USB cable that is rather universal and you can easily get one nearly anywhere.

Charging with the DC cord is an overall much better way to recharge the power bank.

This is because the Input is at 20V/2A. This charging is great because the high voltage ensures that the Amp current is almost always constant during the recharging process and as a result, you can expect the power bank to be fully recharged in 2.5 hours. For a power bank with 27,000mAh of power capacity, this type of charging is very welcomed.

Size and Weight

With its power capabilities, of course, this AC power bank is going to be large and quite heavy. The length of the ChargeTech power bank is 7.5 inches, 5.2 inches in width, and 1 inch in thickness.

So it’s the size of a tablet in terms of length and width. It’s on the heavy side at a weight of 2.4 pounds. So to be clear if you haven’t gotten the idea yet. This power bank is NOT meant to be held and used.

You’re mainly supposed to set it down and use it. This goes for charging a smartphone, tablet, and especially if you’re using the AC Outlet.

If you’re taking it somewhere, you could just hold it on your way to your location or put it into a bag for more convenience. Even though the charger is large and heavy, it’s your best bet to be able to get portable power through an AC outlet in a comfortable location.

The main purpose of this charger being made was so that you don’t have to be stuck to wall outlets. It solves the problem by practically making this a portable wall outlet (Only if you’re charging a device that can draw 85Watts or less!).

Functional Components

The functional parts of the AC power bank are mostly on a single side. One side of the charger has the 3 prong AC Outlet, a light to indicate the AC outlet is on, a switch to turn on the AC Outlet, And 2 USB charging ports. On top is the power button and 4 LED power capacity indicators.

This power bank must be turned on to begin charging and you can press the power button to turn it on. Once on, the USB charging ports illuminate a blue color within them regardless of them having a cable inside them or not.

The charger does not stop charging once a device has charged fully through the USB ports, so if you want to save power capacity you have to remove the device from the USB port.

This kind of design somewhat shows the power bank’s age and how it should implement Over-Charging Protection because this way more power capacity would be saved.

AC Outlet has a Switch Button

You have to turn on the AC Outlet to use it and we find this to be a good idea since it would dangerous to have the AC outlet on at all times. To turn on the AC Outlet, you simply switch it to “On” and then a Red vertical light comes on next to the AC outlet to show that it’s ready to use.

Putting it all together, this isn’t exactly a “Portable power bank” in the way that many power bank chargers are. Don’t get us wrong, though, of course, this is meant to be portable; just not portable as in walking around with it freely. It has a pretty good design, just needs an auto-off feature so there’s no worry about turning it off manually.

Structure and Material

This large and heavy power bank has quite a few separated parts and it’s all made of plastic. Although it’s all really solid. There aren’t any parts that can come loose and all the functional parts of the charger are depressed into the power bank so nothing is sticking out.

Of course just a bit of a warning, though; dropping the power bank is not something that should be taken lightly. When you have something as heavy as this (at 2.4 pounds) then something inside or outside of it is bound to get damaged because the shock from the heavyweight will damage it.

It may look physically tough, but it’s not a rugged power bank built like RAVPower’s Rugged charger or EasyAcc’s.


On the inside is where there are a few issues. ChargeTech hasn’t disclosed what kind of safety tech they have implemented with this AC power bank, but we’re pretty sure that there’s the usual Short-Circuit Prevention and Current Control. Otherwise, the power bank would be damaged after a few uses.

Of course, there’s the use of Panasonic cells that make the conversion quite good and the batteries can last for more charge cycles.

With that said, the charger can heat up if it’s being used heavily and as a result, you’ll be getting less Output power capacity.


This power bank is highly reliable if you’re mainly purchasing it to use the AC Outlet.

It’s a harsh thing to say but that’s the truth. Sure, the charger does have 2 USB charging ports but the Max Output of both USB ports put together is only 2.4A and that’s not very much power if you’re charging two devices at the same time.

Some might say that the power capacity is a lot and that’s true. The power capacity can very well last you days or even weeks but the charging speed that you’re receiving right then and there matters a lot too.

Also, you must use a device that is only able to draw 85Watts or less when you’re using the AC Outlet. Anything that needs more power is going to make the AC Outlet useless.

So you should know what you’re going to use with this AC outlet that this power bank has, as a way of ensuring that you’re able to use the charger’s main feature. It may be described as a portable wall outlet, which is true to an extent but it’s not of the same powering capabilities.



The power capacity is really impressive at an approximately 24,000mAh Output power that can last for days or even weeks. The USB charging is disappointing and will only be able to provide 2.4A Max Output. The AC Outlet can take either 2 or 3 prong plugs, but can only power devices up to 85W or lower.


It’s about the size of a tablet and is heavy at 2.4 pounds. To put it simply, you gotta put this thing down to charge comfortably.

The lack of the USB port’s ability to stop charging when a device is fully charged is obsolete. The power bank must be turned on to use the USB ports and once on, the AC Outlet must be turned on via a switch.

The USB ports have a blue light that’s illuminated inside of them and the AC Outlet has a Red light next to it to indicate that it’s on.


The power bank is separated into quite a few pieces that are all made of plastic. However it holds strong, but just don’t drop it because the amount of shock may very well damage the power bank.

The use of Panasonic battery cells is welcome as it provides a better conversion rating and longer-lasting batteries. The charger does heat up if you’re using it heavily with the AC Outlet and the USB charging ports together.


It’s at its most reliable when you’re using the AC Outlet. You can use the USB charging ports but that’s not the main thing that this power bank can provide. The main thing is to use the AC Outlet with a device that can be powered from it. If you’re only using the USB charging ports, then you’re only relying on half the capabilities.


Power banks with AC Outlets are good but they’re not the best in terms of what you’d think they’d provide. Sure, they have an AC Outlet but the main mistake is thinking that the AC Outlet has the same powering capabilities as a wall outlet, but it doesn’t.

In this case, the ChargeTech AC Outlet power bank does a good job of providing just enough power through its USB charging ports and a good amount of power through its AC Outlet of 85Watts to provide for your needs. You can’t go overboard with it but it’ll do just fine if you know how and what you want to use it with.

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.

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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.

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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.


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?

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

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