Monday, March 8

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Are you looking for a new external battery (powerbank) for the holidays? Here is our selection of the best batteries to charge your smartphone.

While the arrival of fast charging on our phones has made it more difficult to run out of fuel, an electrical outlet is not always within reach. That’s why good old external batteries, or power banks, haven’t had their last word.

On the contrary, they evolve, slowly gaining in capacity, but above all by adopting new standards. Most of them are now equipped with a USB-C connector and a form of fast charging.

When choosing, think carefully about what you will use it for. It can be tempting to buy the biggest capacity possible, but it won’t do you much good if you never take it with you because it’s top heavy or bulky.

If you just want to avoid the phone running out at the end of the evening, a small 5000 mAh battery that fits in your pocket will be more interesting than a brick capable of recharging a tablet several times. The best battery is above all the one you have with you!

More generally, I highly recommend that you set up a “charging pouch»Including the battery and all necessary cables. For the latter, do not hesitate to invest in short models (around 30 cm). They are less bulky while still being long enough to continue using a device while charging. To get the most out of your external battery, also use a USB Power Delivery charger that can charge it quickly.

Here is our selection of the best external batteries.

The best external batteries at a glance

Aukey PB-Y13 10,000 mAh: our recommendation

Aukey is one of the best battery makers out there and it’s no big surprise that this PB-Y13 has established itself as the best battery for everyone. With a capacity of 10,000 mAh, it is thus capable of recharging most smartphones twice. Its format similar to that of a phone in a little thicker also allows it to easily fit in a jacket pocket or a bag.

Connection side, nothing to complain about: we have two USB ports (including a Quick Charge 3.0) and a USB-C connector. The latter is compatible with Power Delivery up to 18 W. Sufficient to recharge the vast majority of devices relatively quickly.

If it is not the most original on the market, this battery therefore stands out as the good quality / price ratio for the vast majority of users.

Why do we recommend this product?

  • Excellent value for money
  • USB-C Power Delivery
  • Quick Charge 3.0

Anker PowerCore Essential 20000 PD: power above all else

Today, there are external batteries that generate a current powerful enough to recharge a computer, compatible tablets or other devices with USB C Power Delivery technology. This is particularly the case for MacBooks in USB C, the iPad Pro, the Nintendo Switch and even some fast-charging smartphones such as Google Pixels or iPhones (since the iPhone X / 8/8 Plus generation, via a USB-C Lightning cable).

This is the case of the Anker PowerCore Essential 20,000 battery. It is equipped with a USB C port compatible with Power Delivery, which allows it to deliver a power of up to 18 watts. It can thus recharge the vast majority of USB C devices optimally. In addition, if you charge it with a charger that is itself compatible with USB C Power Delivery (like this one), it will also benefit from the technology and will find all its colors in just 4 hours. It is very fast for its capacity.

It also has a USB port, which gives it the possibility of connecting a second traditional peripheral by adapting its power so as not to damage the components thereof.

Why do we recommend this product?

  • 20,000 mAh: it can recharge the majority of smartphones up to 4 times
  • USB C Power Delivery compatible to charge a PC, tablet or Switch
  • USB C cable included

Aukey 5,000 mAh: the compact

If you are looking for a more compact model, Aukey offers an external battery in the form of a cylinder with a 5000 mAh accumulator.

Quite simple overall, it is equipped with a USB-C port that allows you to recharge the battery or devices that are usually recharged via a USB-C charger without changing cables. However, it does not have a traditional USB port.

Its weight of 130 grams and its reduced length of 11 centimeters allow it to be very easily transported, in a pocket for example. It will undoubtedly become the best friend of those who have a smartphone with reduced autonomy.

Why do we recommend this product?

  • Its practical size for everyday use
  • Its low price
  • a USB C port that works in both directions

Samsung PowerBank Induction – 10,000 mAh: wireless

With the proliferation of Qi-compatible smartphones on the market, many accessory manufacturers are starting to offer external batteries with an induction charging coil. Or wireless charging, more simply put.

Among them, we find Samsung which offers a 10,000 mAh Qi compatible battery. The battery will be compatible with any Qi certified smartphone or accessory (connected watch, headphones). For owners of a product from the Samsung Galaxy S10 or later range, wireless charging will be slightly more efficient since they are “Fast Charge” compatible.

It is also equipped with a USB port that offers the possibility of charging a second device while using wireless charging. This is a plus which means that it can also serve as a fixed wireless charging station and not only on the move. To recharge the battery, simply connect its usual charger to its USB-C port.

Why is this product recommended?

  • One of the best Qi certified references
  • USB C input and additional USB output
  • A fairly premium aluminum design

Omnicharge Omni 20+ USB-C: the most successful

Sometimes you just need to be able to charge absolutely everything without asking questions, and that’s where the Omni 20+ shines. Much more expensive than most of its competitors of similar capacity, it is however much more versatile.

Its USB-C port is indeed 100 W Power Delivery compatible! In practice, it is therefore capable of charging a MacBook Pro at full speed while the latter is fully charged. A performance that was until then reserved for sector chargers.

It can also power three other devices in parallel since it is equipped with two USB connectors (which can serve as a hub) and a 10 W Qi wireless charging module. The icing on the cake: it is rechargeable via USB- C PD 45 W, enough to fill up 20,000 mAh in less than three hours.

If you need a universal battery that can charge even the most demanding devices, look no further.

Why do we recommend this product?

  • Capable of delivering up to 100W
  • Wireless charging
  • Big capacity

What to know before buying a power bank

How do I calculate the number of recharges for my phone?

The capacity of a battery is expressed in mAh, like that of phones, but don’t think that dividing the first by the second is enough to get the number of recharges. It would be too simple. As often in terms of electricity, the reality is more complex, it is necessary in particular to take into account the voltage of the batteries and the output of the external battery. The scholarly formula is as follows:

(external battery capacity x smartphone battery voltage / external battery voltage) x smartphone efficiency / capacity.

Now let’s take a typical example: (10,000 x 3.7 / 5) x 0.85 / 4000. Which gives us about 1.5 recharges in this case, with 16,000 mAh you will have about 2.2. It will be necessary to calculate according to your smartphone, but with this formula, it is easy to understand that 5000 mAh is not enough to fully recharge a terminal of the same capacity.

What are the trusted brands?

When it comes to electricity, it is recommended to pay special attention to product quality for safety reasons. Remember that the batteries are liable to ignite in the event of a malfunction. In practice, these rare cases, but we will however recommend to go in general towards “big brands” such as Anker or RavPower or even Aukey which are known on the market.

What are the precautions for using an external battery?

For safety reasons, it is important to remember the usual precautions: do not use it or leave it in direct sunlight or in general in poorly ventilated areas. This means for example not to use it or recharge it under a duvet. Obviously, it should not be punctured and even less thrown into the fire.

If you are also looking to reduce the charging time of your smartphone, find our selection of the best fast chargers.

What are the best fast chargers for your smartphone?

From Apple to Oppo via Samsung and Xiaomi, the majority of smartphone manufacturers today offer technologies to quickly charge the battery of their smartphone: Quick Charge, Fast Charge, Power Delivery, etc….
Read more


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