The best external batteries (2020).


Our smartphones we are used to everything, and even sometimes, to make a phone call. The problem is that the more they are efficient, they have less battery. We dream all of a smartphone that would have the longevity of our good old 3310 ..

Failing that, there are the backup batteries. So no more stressing when your phone displays less than 10% of the battery, follow the guide ! We have tested for you the best products on the market.

For information on how to choose your battery recharging, please refer directly to our buying guide.

1. Zendure A2 .


This may surprise you, but at the top of our ranking is a portable battery seemingly very basic : no LCD, no USB port-C, no Quick Charge 3.0. And yet the Zendure A2 deserves its place at the top of our list. Compact, fast and durable, it is designed for everyday use and can recharge up to 3 times your phone.

2. Xiaomi Mi Pro Power Bank 10000mAh .

Xiaomi Mi Pro Power Bank 10,000mAh

Stylish and coated in a matt aluminum, the ergonomic design of the Xiaomi Mi Pro Power Bank is very convincing. She slips easily into the pocket and thanks to its rounded edges, it stands very well by hand.

According to Xiaomi, the battery has an actual capacity of 6 900 mAh output, which is equivalent to two full charges of your phone.

It is very fast and efficient, to such an extent that the Mi Power Bank adapts its power up to 18 W.

Note that in the box is an included adapter for USB Type-C.

3. AUKEY External Battery 8000mAh .

AUKEY Batterie Externe sans Fil avec PD18W 8000mAh

The external battery Aukey of 8000mAh like a smartphone latest generation of its fine thickness, with a weight lower than 200 g, it easily slips in your bag. It is equipped with an output PD of 18W, a Quick Charge 3.0 and one USB Type-C. Its LEDs, they will tell you its remaining energy.

To initiate its charging Qi, double-tap the ignition button.

Aukey we book there a battery backup successful, it is elegant, compact, fast and functional.

4. AUKEY Power Bank USB C 10000mAh .

AUKEY Batterie externe USB-C 10000mAh

The battery nomad Aukey USB-C 10000mAh can charge any device via its micro USB cable to USB-supplied, but for your smartphone or Nintendo Switch to USB output C, you will need your own cable.

It is equipped with the technology Support Adaptive AiPower to provide the amount of power needed by your devices. Thanks to its green LEDS keep an eye on its remaining power.

This is a beautiful battery compact that will appeal to the greatest number !

5. Anker PowerCore 10000 QC .

Quick Charge 3.0 Anker PowerCore Speed 10000mAh

Fast, lightweight and affordable, this external battery stores 10000mAh and allows a rapid recharge phones “quick charge 3.0”. The Anker PowerCore 10000mAh has managed to seduce us with its excellent price/quality ratio. It is the perfect companion for all your travels.

6. Tronsmart Trim 10000mAh .

Batterie externe Tronsmart Trim 10000 mAh

Tronsmart is a other manufacturer of external batteries to the excellent quality-price ratio.

The Trim 10000mAh is equipped with a micro-USB cable/USB-A for charging easily, but also your devices. It is to be noted that the USB port is also capable of providing 18W-enabled devices. What we regret is that it lacks a USB Type-C to take advantage of its port, 18W Power Delivery..

The Tronsmart Trim has a very beautiful design, rectangular and thin (144 x 70 x 12 mm and weighs 194 g). The black case has a matte finish that holds well in the hand and does not slide, its edges are color metal, gold or pink.

7. RavPower 10000mAh .

Batterie externe RavPower PD Pioneer 10000mAh

We love this battery, RavPower, because this is a battery portable compact 10,000 mAh battery that rapidly recharges up to two devices.

Don’t be fooled by the 29W indicated because it is the maximum power of the 2 combo-ports. It is enough to charge 2 or even 4 times a smartphone, depending on your device.

This RavPower has two USB outputs : one port Quick Charging and a USB port-C, which can provide 18 W input and output.

Moreover, using this port, the RavPower makes his full-3h only. Also, we love the fact that it is charging simultaneously with the connected device.

It holds well in the hand, at its end you will find the different USB outputs, and finally on the side 4 LEDS and a button allowing you to check the level of energy remaining.

8. Battery EasyAcc USB-C 10000mAh .

EasyAcc USB-C 10000mAh

The EasyAcc USB-C is a thin portable battery 10000 mAh, equipped with USB ports A and C, for a shorter recharge on smartphones and the EasyAcc itself.

It has a speed of 5V/3A and 10,000 mAh should be sufficient to charge a phone at least two times. The EasyAcc is sold with a USB Type‑C to USB‑A, but for more speed, we recommend that you buy a cable USB-C to USB-C if you have a laptop USB‑C, for example, and for the iPhone, a USB-C to Lightning.

The EasyAcc also includes a flashlight which is very light for emergencies or to try and connect your devices in the dark.

9. Iceworks 7000 .

Iceworks 7000

The Iceworks 7000 that we tested is a model of the USB Type-C, which can only be used with Android smartphones, it excludes iPhone users.

It is a rapid charger with a capacity of input and output of 15W. Its input type a USB Type-C is also an output, so, you can charge two devices at once if need be.

We love the idea that the y cable is integrated.

10. Battery Aukey 20000mAh USB-C .

Batterie externe Aukey 20 000mAh Slimline

The battery pack of 20000 mAh Aukey is attractive for 3 reasons : its price, its large capacity, its number and variety of ports.
It includes 3 USB outputs and a USB port-C. The latter can be used to load the Aukey.
While the USB-C has a speed of up to 3A (15W), the other three outputs must share the same amount between them. So, if you plug in three devices, they will each to a slow rate of 5W.

Once exhausted, the Aukey will require 10 hours to do the full, although you can continue to charge the devices connected.

The tradeoff for all this power is the size and the battery Aukey is huge. It is much larger than some phones, but it has the advantage of being tinny (14 mm). However, this side tapered ends there because it all weighs the same 435 g..

Its 4 small LEDS on the side, show you the remaining power.

11. Flow Load More .

Flux Charger Plus

We have included the battery nomade Flow Load More because it is a great product all-in-one. It includes all cables and outlets required to charge your smartphone (iOS/Android) while remaining thin and ultra-portable (with 13.6 x 7.1 x 1 cm, 200 g) and powerful (10000 mAh).

As almost all the backup batteries on the market, it has LED indicating the amount of power remaining.

12. Moshi IonSlim 5K .

Batterie portable USB-C Moshi IonSlim 5K

Here is a model of Moshi which can be suitable to all, the IonSlim 5K only weighs 143 g and has a power of 5150 mAh.

The IonSlim, the recovery of aluminum, has a thickness of 8.5 mm, but it remains thin and easy to carry.

Its USB Type-C is both an input and an output. It will recharge your smartphone in a very short time with his 15-W.

Surprisingly, it is not self-active not. To turn it on, you will need to connect your device, and then press the power button.

13. RavPower PowerStation Series 20100mAh .

RAVPower Chargeur Portable 20100mAh

Fast and versatile, this external battery RavPower, somewhat imposing, has 20 100 mAh. For its capacity, this backup battery is charging and charging all your electronic devices very quickly. If your budget allows it, the RavPower will be perfect for your long trips.

Batteries : what you need to know.

All batteries are not created equal, far from it. Before you buy your laptop battery there are a few technical characteristics which it is necessary to be attentive.

The storage capacity of a laptop battery is measured in milliampere-hour, mAh. The more you have of mAh, the longer your laptop battery stores electricity.

It is good to note that, regardless of the battery, there is a loss of energy due to the conversion of pressure and heat that it produces. The external batteries on the market are generally effective in 60 % or 70 %. Only a few premium products can boast up to 90 % efficiency.

To be sure to be able to fully recharge your device, it is necessary to choose a portable battery that has more mAh than your mobile phone.

Another aspect to take into account is the debit entry, that is to say, the speed at which your laptop battery is charging. It is measured in amperes, A (sometimes referred to as “Amp” on the packaging). The more amps, the more the battery recharges quickly.

Finally, it is necessary to consider the output of the portable battery, that is to say, the speed at which the battery will recharge your mobile phone. It is measured in amperes.

The majority of smartphones are recharged with 1A (5W). However, some recent models, “quick charge”, can be recharged more quickly in the absorbent 2A (10W), for example.

So, choose a portable battery the number of amps suitable for your phone. Please note, that unfortunately, an external battery with an output port 2A does not reload, not a mobile phone 0.7 A faster, and vice versa. If your phone is “quick charge” and that he accepts a flow input of 2A, but as you recharge with an external battery with the capacity of 1A, it will reload less quickly.

Additional features : the most gadget in the most useful


The lamp torch.
Auto-on/Auto-off : the laptop battery is running and stops automatically when a device is plugged, which allows to minimize the loss of energy.
The LED or LCD screen : they display the level of the external battery.
SMART or Power IQ : recognizing the amperage of the device to recharge, the backup battery optimizes the reload time.
“Passthrough charging” or Reload direct : allows you to recharge the battery and the device (phone, tablet,..) at the same time. Taking two shots !


How to choose a laptop battery ?.

Choose a laptop battery depends on your needs and your devices. The thing is to find the balance between portability, cost, number of charge and speed of recharge.

Some people may prefer a portable battery that slips easily into a bag and offers two cartridges full of their mobile phone, others will pick up a battery most imposing that has under the hood, and allows you to charge multiple devices at the same time.