Best Power Bank 2020: Portable USB Chargers – Digitaleclub
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Best Power Bank 2020: Portable USB Chargers

Not all power banks are created equal. You’ve got cheap ones and pricey ones as in all veins of consumer tech, and as with anything else sometimes you’re just paying for a name. But beyond that, there’s so much more to portable power than a charging brick with a USB output.

We want the fastest charging speeds – for the bank itself and for the phone – and to know at a glance that a portable charger is going to get us through the day with juice to spare, even share. But we don’t want it weighing down our pockets.

We want multiple ports for charging additional gadgets, and more efficient use of power outlets to free up sockets. We don’t want to carry multiple charging cables – in fact we don’t want to carry any cables at all.

Design and capacity are most important, sure, but what about wireless- or even solar charging? What about an LCD screen? Waterproofing? Don’t you want the coolest and most convenient power bank you can get for your money without paying over the odds?

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 below our chart.

Best Power Bank Reviews

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1. xcentz xWingMan Dual 10,000mAh Power Bank with PD – Best Overall

We can’t get over the size of this 10,000mAh power bank from xcentz, which makes it the ultimate portable charger for combining capacity and portability. The xWingMan Dual is significantly smaller than most 10,000mAh power banks at 76x59x27mm.

We really like the design – a small, rectangular block with a soft-touch rubberised casing and rounded corners that make it a comfortable fit in the hand or in the pocket. On the top surface is a high-gloss strip with the xcentz logo and four blue LEDs, and a similarly glossy power button just below is used to activate these LEDs and see at a glance how much power remains.

It’s not just compact and good-looking, the xWingMan Dual is also very attractively priced, and it’s fast. There is a USB-C PD port that can act as both input (12W, allowing you to recharge the bank in 3.5 hours) and output (18W), plus a full-size Quick Charge 3.0 USB-A output.

We also really appreciate the fact you get not only a USB-A to USB-C cable in the box, but also a USB-C to USB-C cable. Both are relatively short 30cm cables, but that’s not a bad thing.

Do note that the fact two cables are supplied in the box does not mean this power bank supports passthrough charging, which is the ability to charge the power bank and an attached device at once.

The two cables merely let you charge two devices at once, which is also handy for such a tiny device. We’d expect two full charges of an Android phone from that 10,000mAh capacity, and potentially three for an iPhone.

The xcentz power bank feels incredibly well made, but a two-year warranty adds peace of mind.

2. RavPower PD Pioneer 10000mAh 29W 2-Port Power Bank – Best Value

RavPower PD Pioneer 10000mAh 29W 2-Port Power Bank

RavPower is another very well known maker of power banks, and you won’t go far wrong with its products. We particularly like this PD Pioneer model, a compact 10,000mAh power bank that offers fast charging for up to two connected devices.

Don’t be fooled by the 29W on the box: that’s the maximum output of the two ports combined, so you shouldn’t get any ideas about being able to charge a USB-C laptop such as a MacBook. To be fair, you wouldn’t really want to use a 10,000mAh power bank to charge a laptop, given that it will quickly run out of power, but it is an ideal capacity for smartphones – small enough to carry in your pocket or bag, yet sufficient for at least two- and potentially four full smartphone charges, depending on your device.

This RavPower unit has two USB outputs: one full-size QC3/2 port, and the other a USB-C power delivery port that can deliver 18W in and out. When recharged using the latter, the RavPower’s capacity is restored in as little as three hours. We also found it was happy to support passthrough charging in our tests (the ability to simultaneously charge the device and charge a connected device).

It’s worth pointing out that although there is a full-size USB port here, only a USB-C to USB-C cable is provided in the box, so if your device does not support USB-C you’ll need to supply your own cable for charging. This cable feels good quality, and we’re confident it should last well. A soft grey carry case is supplied, making it easier to store the necessary cables with the bank.

Though it’s a relatively standard matte black plastic design, the slightly chunky rectangular body of the RavPower makes it a very comfortable fit for the hand. A thin wedge is cut out from one end of the device, which is where you’ll find the USB outputs, sloping down on one side to reveal four LEDs and a button that allows you to see roughly how much power remains in the bank.

3. Aukey 10,000mAh Universal Power Bank – Best Functionality

Aukey 10,000mAh Universal Power Bank

This Aukey is another take on the standard 10,000mAh power bank with 18W Power Delivery and Quick Charge support, but it stands out for its palm-friendly rounded design and high-gloss end caps. It’s pretty compact, too, at 105x50x25mm and 181g.

While the full-size USB output is marked up as QC3 and the USB-C is PD, both operate at 18W – plenty fast for charging a phone or tablet, but unlikely to be enough for a laptop. It has a maximum output of 18W, however, so expect slower charging when using both ports at once.

If one of those attached devices is a fitness tracker, wireless earbuds or another low-power gadget, the Aukey has a handy Low-Current Charging mode (USB-A only) that you can switch to by pressing and holding the power button for a couple of seconds. The USB-C port will still fast-charge any connected devices during this time.

In common with many modern USB-C power banks, the Aukey uses this port for both charging connected devices and recharging the bank, which means you can get back up and running much faster when all your batteries run low. 

4. Anker PowerCore Speed 10,000mAh QC – Best Reputation

Anker PowerCore Speed 10000 QC

Anker is a very well-known brand in the power bank market, so you can buy with complete confidence. Its devices are functional rather than exciting in terms of design, but the performance is there and they offer great value.

Our favourite of all is the PowerCore Speed 10,000mAh QC, which has a super-compact design that will easily slip into a pocket. Anker claims it’s 27 percent smaller than comparable banks at this capacity, and it weighs just 198g.

There are just a single input and single output, with four blue LEDs on top to show how much power remains. So it’s nothing fancy, but the PowerCore Speed is functional and intuitive in use.

The Speed 10000 QC supports Quick Charge 3.0, Voltage Boost and PowerIQ, and these three performance technologies combined in essence ensure that any connected device is charged in the shortest amount of time possible.

If you don’t have a Quick Charge-enabled phone you’ll still get 12W from this output, and the input is also fast to refill the bank at 10W. Unfortunately there’s no support for passthrough charging, which would have been the icing on the cake.

New with this version is a bundled mesh carry case, which is handy for keeping together the power bank and necessary cables.

Read our full Anker PowerCore Speed 10000 QC review

5. Anker PowerCore Essential 20,000 PD – Best Value 20,000mAh Power Bank

Anker PowerCore Essential 20000 PD

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 – as is the 18-month warranty.

6. Anker PowerCore 10K Wireless – Best Wireless Power Bank

Anker PowerCore 10K Wireless Power Bank

The Anker PowerCore 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 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 5W. 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 12W, so charging two or three (one wireless, two wired) devices will split that power output.

7. Aukey Basix Pro Series 10000mAh Wireless Charging Power Bank – Best Kickstand Power Bank

Aukey Basix Pro 10,000mAh Wireless Power Bank

Wireless charging power banks are becoming more common, and this Aukey example can deliver up to 10W wirelessly. For wireless earbuds and iPhones it can deliver 5W or 7.5W as appropriate.

The Aukey differs from competing models with a fold-out kickstand on its rear, and a little flap on the front to hold in place your phone.

The kickstand comes into its own when you want to watch video while charging the phone, positioning it at a useful angle with no messy cables in sight. However, we do worry about the durability of the plastic component, and fear it could be relatively easy to snap off. Still, if you’re careful, it could be a useful extra function to have.

If you’re not concerned about charging wirelessly, the Aukey Basix Pro also has a full-size USB-A output with Quick Charge 3.0, and an 18W Power Delivery USB-C input/output. This translates to speedy wired charging for your connected device, and the power bank itself can recharge in just 3.5 hours.

There’s a useful 10,000mAh capacity, which should be good for at least two full charges of your smartphone – and potentially more, depending on your device.

8. Tech Charge Wireless PowerKit 5000 – Best Bundle

Tech Charge Wireless Powerkit 5000

Typically sold separately, you can save some money on charging accessories when you buy them as a bundle – and this Wireless PowerKit 5000 from Tech Charge offers incredible value. In the box you get a 10W wireless charging pad, a 5,000mAh power bank that can charge your mobile devices over standard USB or Qi wireless, and three cables (two Micro-USB and one Lightning).

The power bank is nicely designed, with a rectangular body and rounded corners, plus a soft-touch black casing. Despite being lightweight it’s larger than many power banks of this capacity, but necessarily so to build in the wireless charging tech and serve as a stable base for your phone when charging in this manner. You’ll also find four nubbins on the bottom to keep it steady on the desk. 

We’re still not entirely convinced by wireless charging on power banks, given that most people will carry the bank in a pocket or bag (and that’s simply not going to work), but for some gadgets such as wireless earbuds and smartwatches Qi is the best way to charge them. And we admit it’s a cool feature to have.

Though not advertised as such the Tech Charge power bank appears to support passthrough charging, which means you can simultaneously recharge the power bank and a connected device, freeing up mains power outlets in your home. Not that it’s going to take an age to recharge, thanks to a 10W Micro-USB input, but note that the power bank itself does not charge wirelessly.

It is true that you will find faster and more fully featured power banks elsewhere – and cheaper, too, if you won’t benefit from the wireless functionality or separate wireless charging pad. It’s lacking, for example, Quick Charge support, USB-C and an LCD display (none of which is yet standard in the power bank market). But this Tech Charge kit offers excellent value, and it is eminently functional.

From its 5,000mAh internal battery you can expect between 3,000- and 3,500mAh to be available to your devices, at least when recharged over the standard USB port. These days that is a single charge for most phones, but with older iPhones and budget Androids you should expect to find a small amount of juice left over for emergencies.

As far as we can ascertain the Wireless PowerKit is not Apple-certified, but compatible with all current iPhones that support wireless charging, as well as all Qi-compatible wireless devices. 

9. Moshi IonGo 5K Duo – Best Design

Moshi IonGo 5K Duo

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.

10. Tech Charge Super Slim 5000 – Best Value Power Bank with Built-in Charging Cables

Tech Charge Super Slim 5000

This ultra-slim power bank from Tech Charge is a good-looking device with built-in cables for USB-C and Lightning (Apple-certified), as well as a full-size USB output. All three can operate at up to 12W.

When viewed from above the aluminium fascia adds premium appeal, but the effect is spoiled somewhat by a black plastic band running around the circumference. The black model looks significantly better for this reason. Still, it’s better-looking than many power banks, and it’s lightweight (151g) and compact (135 x 76 x 9mm), making it easy to slip into a pocket.

Four small white LEDs on the top surface reveal how much power remains, and can be activated at any time with a press of the power button, which sits on the top edge beside a 10W Micro-USB input.

There are no fancy features such as passthrough charging, USB-C, Quick Charge or an LCD display, but what the Tech Charge lacks here it makes up for in functionality, negating the need for you to carry additional cables.

From the 5,000mAh internal battery you can expect between 3,000- and 3,500mAh to be available for charging your devices. How far this goes depends on the capacity of your phone’s battery, but for most phones it will be at least one full charge, and potentially a little extra for an emergency boost. It is sold pre-charged, so you can simply take it out the box and start recharging your phone.

The Tech Charge offers good value, and adds convenience for users with its built-in cables. We were slightly concerned by the fact that when shaken you could hear the internals knocking inside, but a second sample showed no such issues.

For peace of mind Tech Charge builds in the usual safeguards, including overheating, over-voltage, short-circuit, over-current and over-charge protection. There’s also a one-year warranty.

11. Tech Charge Super Fast 20,000 Power Bank – Best High-Capacity Power Bank

Tech Charge Super Fast 20,000 Power Bank

This Super Fast power bank from Tech Charge has a 20,000mAh capacity, but is more compact than most such models – and significantly better looking with its soft-touch rubberised outer case and grippy, ribbed design.

There’s a small Tech Charge badge on one side, directly up from which is a row of four very unobtrusive LEDs to denote remaining power capacity – and then a high gloss panel at either end, one of which houses all the ports.

Rounded corners make this bank comfortable in the hand, while its rectangular body should slip easily into a pocket, despite its 349g weight – actually, for a bank of this capacity, that’s really quite impressive. This portable charger measures just 137 x 67 x 24mm.

It supports 18W over a USB-C Power Delivery port, plus two full-size USB-A outputs – one a Quick Charge 3.0 port and the other rated at 15W.

There is also a 10.5W Micro-USB input, which can be used for recharging the bank, though you’ll get quicker performance over USB-C – thus we were slightly disappointed by the inclusion of a Micro-USB- rather than USB-C cable in the box, though you likely already have your own.

Tech Charge claims its power bank will charge an iPhone 8 nearly eight times. With a rated battery capacity of 1,821mAh, you might be wondering where the rest of the power is going. Actually this is normal for power banks, which lose energy through voltage conversion and heat generated, and typically run at an efficiency of 60-70%.

The bank feels well made, but a two-year warranty adds peace of mind.

12. Aukey 20,000mAh USB-C Power Bank – Best Power Bank with Multiple Ports

Aukey 20,000mAh USB-C Power Bank

Aukey’s 20,000mAh power bank is appealing for three reasons: its price, its large capacity, and its number and variety of ports.

You get three full-size USB outputs, as well as a single USB-C. You can also use this USB-C port to recharge the power bank, which is the fastest method, or you can use a Lightning or Micro-USB input (the latter oddly hidden around the corner from the other ports), so it will work with whatever cable you happen to have to hand. For what it’s worth a USB-C cable is supplied in the box.

This isn’t going to be the fastest power bank for charging multiple devices, however. While the USB-C can output up to 3A (15W), the remaining three outputs must share the same amount between all three. So if you plug in three devices they are each going to charge at a slow 5W. Still, all those ports could prove very convenient if you have multiple devices.

And if you are charging more than one device then you’re going to need lots of juice. With a rated capacity of 20,000mAh you can expect around 13,000mAh to be available to your devices. That might charge an iPhone seven times, or a typical Android phone four times.

Once depleted the large battery will take 10 hours to recharge, though you can continue charging attached devices in the meantime.

The trade-off for all this power is size, and this Aukey charger is huge. It’s much larger than our phone at 200mm long and 96mm wide, though also reasonably skinny at 14mm. It’s as heavy as it looks at 435g, and feels quite bulky.

The design is also rather basic, a matt black plastic slab with a shiny plastic bumper running around the circumference. The Aukey logo is printed on the front and four small LEDs are visible on the side to show how much power remains.

13. Aukey 10,000mAh USB-C Power Bank – Best 10,000mAh Power Bank with Multiple Ports

Aukey 10,000mAh USB-C Power Bank

Very similar in design to Aukey’s 20,000mAh bank, this 10,000mAh power bank from Aukey is half the capacity and has fewer ports, but it’s also more easily portable and cheaper. 

Although you lose one of the full-size USB outputs, with this model offering two not three, one of the outputs here has been upgraded to Quick Charge 3.0 spec, which means it’s good for up to 18W. As on the larger model, with both ports engaged you share the 18W maximum output, so having one fewer USB-A is really no major loss.

You might be slightly more disappointed by the removal of the Lightning port if you’re an Apple user, but you can charge the bank over Micro-USB or USB-C, with a USB-C cable supplied in the box. This is the faster way to recharge the device, supporting up to 18W in comparison to the Micro-USB port’s 10W.

14. Moshi IonSlim 5K – Best Low-Capacity Power Bank

Moshi IonSlim 5K

The 143g IonSlim 5K is expensive but has a good-looking design and a useful 5,150mAh battery. 

A lot of what you’re paying for here is the design, and the aluminium-clad IonSlim is a crazy 8.5mm thick – that makes it just a fraction thicker than the USB output found at one end.

There’s also a USB-C port, which is both input and output. It’s fast at 15W, which means charging the power bank itself doesn’t take significantly more time than charging your phone, but we’d have been more impressed were it to provide support for passthrough charging.

Other features are reasonably basic, and this is one of few recent power banks we’ve tested not to support auto-on. You’ll need to plug in your device and then press the power button, which just seems like an unnecessary extra step in this day and age.

Read our full Moshi IonSlim 5K review

What capacity do I need?

Power bank capacity is commonly misunderstood. You don’t need to understand what is mAh, only that if your phone spec says it has a 4,000mAh battery you are going to need at least a 4,000mAh bank in order to get a full charge.

Actually you need more than that. No portable charger runs at 100% efficiency, with most averaging around 65%, and some hitting as high as 80- or 90%. The latter are the ones you want.

In order to fully charge a 4,000mAh battery phone, you’re likely going to need something more like a 6,000mAh power bank. So all those 5,000mAh banks that claim to charge your phone twice, don’t believe a word – not unless you’ve got a really old phone with a tiny battery.

Devices tend to sold in 5,000mAh, 10,000mAh and 20,000mAh capacities, with a few variations in between. As a rule of thumb, 5,000mAh is a single-use power bank that will be easily portable; 10,000mAh hits the sweet spot, both portable and offering at least two full charges; 20,000mAh is high-capacity, most useful for those who are going to be away from mains power for extended periods or will be charging multiple gadgets. Don’t attempt to stuff a 20,000mAh device in your pocket.

Of course you can buy banks with significantly higher capacities, which are particularly useful if you want to charge a laptop (see our round-up of PD power banks for that), but they are going to be much bigger, bulkier and more expensive.

Do note that if you’re travelling on a plane your portable charger must be in your hand luggage, and anything over 27,000mAh (100Wh) needs approval from the airline (over 43,000mAh/160Wh, forget it).

With great power comes two great problems, however. First, recharging can take forever (okay, like nearly a day in some cases). Second, with most devices offering a row of four LEDs to denote how much power remains inside the bank, working out how much you’ve actually got left can be impossible.

Solutions here are simple. An LCD screen will give you an exact readout of remaining capacity, though these are rarely found on low-capacity and cheap banks. Passthrough charging lets you charge both the power bank and connected devices at once, freeing up power sockets if you are going to have to leave it plugged in for long periods. Ensuring you have the fastest possible input (typically a USB-C PD input, which can be as high as 100W) will also speed things up.

What speed do I need?

If I had it my way 5W power banks would be banned. They are painfully slow. Anything lower than 10W: nope. 

These days even 10W, though marketed as ‘fast charging’, barely scratches the surface of what recent smartphones are capable of. With some able to go as high as 45W over a wired connection, a 10W power bank is not going to feel especially convenient.

That said, 10W is more common among the budget- and mid-range, and many people will be using 10W chargers at home. But we’d still recommend looking for a faster power bank, especially those with Quick Charge or Power Delivery support (even if your current phone doesn’t support it, a later upgrade most likely will). 

That seems pretty straightforward, although power manufacturers rarely provide the speed of their outputs measured in Watts. Instead you’ll see a rating in Amps, which you multiply by five (the Voltage rating) to get the rating in Watts. So 2A x 5V = 10W. 

Which outputs do I need?

If you’re an iPhone user (and intend to stay an iPhone user), look for a power bank with a Lightning port that can serve as input and output to save you scratching around for cables you wouldn’t otherwise use.

Android phones are increasingly moving over from Micro-USB to USB-C, and in which case a USB-C port that acts as input and output is preferable. However, it’s still common for power banks to be recharged over Micro-USB, and sometimes you’ll find both Micro-USB and USB-C. Don’t try to use them simultaneously for recharging the bank. As a rule of thumb, USB-C is going to be the faster option.

How many ports you need depends on how many gadgets you want to charge at once. If more than one, watch out for power banks with a max output that is lower than the sum of all ports together – they won’t be able to deliver the maximum rated output of all at once. Also watch out for capacities that are too low to fully charge multiple devices. 

There is no need to worry about plugging devices into ports that are capable of delivering more power than they are 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).

Wireless power banks are becoming more commonplace, and here you won’t need any outputs if you’re intending to use it only for wireless charging. An input will still be required to recharge the bank itself.

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:

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