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How did we choose the best external smartphone batteries?

For years, we have selected and tested dozens of solar batteries or not. This selection of the best external batteries has been essential in turning us towards the most suitable choices for users. We have also taken care to choose inexpensive external batteries for small budgets.

To do this, the capacity and speed of charging have been taken into account. This data is essential, because a successful external battery test should take into account that you can use it on most smartphones. We also did not limit ourselves to big brands like Aukey, Anker, RAVPower, Samsung for example.

Phone batteries with construction defects or showing difficulty in use have been ruled out. We have also, for reasons of fairness, taken care to establish a comparison of USB batteries having the same price. Elements such as the type of use, the integration or not of the Lightning or micro-USB cable to the solar charger have been taken into account.

In addition, we also considered the price of the power bank, the ratio between the capacity and the weight and finally the ratio between the volume in cubic centimeters and the load capacity. These different elements have allowed us to understand that basically, the manufacturers of external batteries Xiaomi and other big brands tend to stick to the various evolutions and to integrate them into their products.


By the way, what is an external battery (power bank)?

The Power bank, contrary to what we tend to think, is not a brand. This is the English version of what is called “  external battery  ” or “  backup battery  ”. It is an accumulator which can be connected or recharged with electric or solar energy.

Using an external battery can provide energy or increase the autonomy of a smartphone or PC without using an electrical outlet. This device is therefore perfect for recharging our phones. There are also tablet batteries that require more electricity. They can use on average 2000 mAh to fully charge a smartphone and 5000 mAh, a tablet.

In the event of intensive use of the telephone (internet, music, video, games, etc.), the internal battery runs out without having finished the day, hence the practical use of back-up batteries.

What is the mAh?

The mAh also translated as Ampere-hour is a unit of electrical charge. This is the amount of electricity that passes through a section of a conductor through which a current of intensity of 1 ampere passes for one hour. Although the unit recognized by the International System (SI) is the coulomb with the symbol C, the ampere-hour is increasingly used to quantify the energy capacity of power banks.

Top 10 best external batteries 2021

External Battery HEETP 24 800 mAh

External Battery HEETP 24,800 mAh is a very high capacity “power bank” created by the HEETP brand. This very light external battery is made from Lithium Polymer and has two output ports which allow very fast charging (the fastest port is 5 V DC and 2.1 A). It has four LED lights symbolizing each charging step (0-25%, 26-50%, 51-75%, and 76-100%), making it easy to monitor battery status. The HEETP External Battery is supplied with a micro USB cable and a user guide. Compatible charging Macbook 2015/2016/2017 .

Characteristics :

  • Battery capacity: 24,800 mAh
  • Warranty period: 24 months
  • Size: 150 x 15 x 75 mm
  • Culeur: black
  • Battery weight: 350 g
  • power pack plus 7500 series

Most :

  • The battery is very durable (very long duration)
  • She is very strong physically
  • LED indicator light comes in handy for monitoring battery status

Pxwaxpy 25 800 mAh External Battery

The Pxwaxpy 25 800 mAh External battery with LCD screen is the latest model of the brand produced in 2021. This Power Bank is made from Lithium Polymer and has two USB ports, allowing simultaneous charging of two devices; it comes with a USB cable and a user guide. The latter is multi-language; no language barrier.

Apart from recharging smartphones, its USB ports are also compatible with tablets and video game controllers. And above all, the Pxwaxpy External Battery turns off automatically when the device being charged is full, thanks to its multiple functions: protection against overcharging, discharging, short circuits, temperature rises, etc.

The characteristics :

  • Battery size: 150 x 15 x 75 mm
  • Capacity: 25,800 mAh
  • Black color
  • Weight: 350g
  • Warranty period: two years

The most :

  • Battery with excellent longevity
  • Its small size facilitates its mobility
  • The battery has two USB ports that allow simultaneous double charging

Anker PowerCore External Battery 20 100 mAh

Anker PowerCore External Battery 20 100 mAh is a high capacity battery equipped with “PowerCore” technology thus guaranteeing a safe and very fast charging quality. It has two 4.8A USB ports; this exceptional power makes it possible to recharge any type of device operating by energy storage.

The Anker PowerCore External Battery is equipped with a “MultiProtect” security system which has the role of protecting your various devices in the event of overheating or overvoltage. Anker PowerCore External Battery 20 100 mAh is supplied with several elements: the micro USB cable and the protective cover. Also, a user guide is provided to describe how to use it.

The characteristics :

  • Color: black or white
  • Weight: 331 g
  • Dimensions: 9.6 x 6.2 x 2.2 cm
  • Guarantee: 18 months
  • Battery capacity: 20,100mAh

The most :

  • The transport pouch is provided
  • The battery is very resistant and strong
  • The design is very neat

Charmast External Battery 26 800 mAh

Charmast External Battery 26 800 mAh is a gadget created by this brand and having particular characteristics. It is made of very high quality Lithium Polymer. The battery has three separate USB-C input ports and four “iSmart” output ports. These allow you to recharge several types of terminals such as telephones, manual consoles, connected watches, tablets, etc.

An on / off button controls battery operation. The four indicator lights make it possible to monitor the state of charge (from 0 to 100%). The Charmast External Battery is supplied with other accessories including two USB cables, USB converters, a pouch for storage, and a user manual.

The characteristics :

  • Capacity: 26,800 mAh
  • Black color
  • Dimensions: 19.68 x 9.4 x 1.4 cm
  • Battery weight: 400 g
  • Warranty: one year

The most :

  • The battery is allowed on board airplanes
  • This battery is very versatile on several terminals
  • Very large capacity

HETP External Battery 25 800 mAh

HETP External Battery 25,800 mAh is a battery created by HEPT, part of the Y8 series. It has two USB ports, so compatible with smartphones, just use your phone cable. It offers two 5 V and 2 A inputs, and two outputs: 5 V and 2.1 A (the maximum) on the one hand and 5 V and 1 A on the other hand. The charging speed is very fast and it is also possible to charge two devices at the same time.

The HETP External Battery is delivered with other elements: a micro USB cable and a user guide written in five languages (French, German, Spanish, English and Italian).

The characteristics :

  • Capacity: 25,800 mAh
  • Color: Black and Red
  • Guarantee: two years
  • Weight: 350g
  • Dimensions: 15 x 10 x 2.5 cm

The most

  • Very large battery capacity
  • Beautiful design
  • Can be used in an airplane in complete safety

EC Technology External Battery 22 400 mAh

EC Technology External Battery 22,400 mAh is a power bank 3 th generation suitable for long trips. It is equipped with “Auto-IC technology”; the latter allows the battery to provide the ideal recharging power independently, depending on the device being charged. It also has an LED flashlight (with a highlight mode) which is very useful in the dark.

The battery has four blue lights indicating the degree of charge capacity available. Each indicator corresponds to a percentage range (0 to 25%, 26 to 50%, 51 to 75% and 76 to 100%). In addition, the strength of the External Battery EC Technology is guaranteed thanks to its shell based on “fire retardant plastic”.

The characteristics:

  • Capacity: 22,400 mAh
  • Color: Black and Red
  • Warranty: one year
  • Weight: 462 g
  • Dimensions: 160 x 80 x 23 mm

The most:

  • Very large battery capacity
  • Versatile battery
  • Can be used in an airplane in complete safety