The best external batteries to charge the mobile anywhere – InTallaght

The truth is that today there are many models of smartphones that support fast charging, which allows us to recharge a good part of the capacity of our battery in a short time. However, this implies having to depend on a plug where to connect our phone, hence many users choose the solution of buying an external battery, also known as power banks.

What is a Power bank and how does it work

An external battery or Power bank is one that allows us to recharge a mobile phone, tablet or even laptop whenever we want and without the need for depend on having a plug available. In short, it is a device that allows us to always have our mobile with enough battery in any circumstance. Very useful for those who are glued to the mobile all day and back and forth, people who travel and spend many hours in a means of transport without the possibility of recharging their phone, those who like to play on mobile, watch series or movies from your devices, etc. In short, an ideal device to avoid running out of battery in the mobile at any time of the day.

Like a mobile phone, an external battery contains a lithium battery of different capacities and an electronic circuit board that is in charge of controlling its correct operation, regulating the voltage and protecting the battery from any overload. When connecting our mobile to an external battery through the corresponding port, the power bank identifies the connected device and supplies it with energy. As if we had connected it to the current with its own charger.

These external batteries also have to be recharged, something we can do in the same way that we charge a mobile phone. In this case, it will be the battery or power bank that we will connect through its own charger so that the internal battery recharges and we can have all its charge and autonomy to recharge our mobile, tablet, etc.. Like some smatphones, there are power bank models that also support fast charging, so we can charge a large part of their capacity in a short time.

To take into account when choosing an external battery

There are several aspects that we must take into account before choosing a power bank model. And it is that depending on the use that we are going to give it, we will have to assess whether we need an external battery with the latest technologies or simply a model that gives us more capacity, etc.

Capacity: There is no doubt that capacity is one of the main aspects to consider when choosing the battery. Depending on the capacity you have, we can recharge our mobile phone more or less times.

Size: The fact that a battery offers more or less capacity usually has a direct influence on its size and weight, therefore, it is another fact to consider. In this way, the greater the capacity of an external battery, the greater the size and weight it will have and therefore it will be somewhat more uncomfortable to carry in our pocket every day, for example.

Number of ports and type: Depending on the use we are going to give it, it is important to look at the number of ports it offers us. In this way, we can have several devices charging at the same time in an external battery without problem. Although it is essential, it should be remembered that we must look at the type of ports that it has and that are compatible with our device. It is also worth assessing that it has a USB Type-C port, since it is the one that is present in the new generations of smartphones.

Fast charge: This is another important decision when choosing one power bank or another. Now, if our mobile does not support fast charging and we do not intend to change it in the near future, then we can save a lot of money buying a battery that does not have this technology.

Price: The budget we have may limit us to a certain extent, therefore, it is advisable to make a good choice depending on the needs and the budget. We must give priority to certain characteristics, such as capacity versus fast charging or have certain accessories and extra features that will always increase the price of an external battery.

External batteries that we can buy at a good price


It is an external battery from RAVPOWER that offers a large capacity, 26,800 mAh, and which also has fast charge. Its total charging time is about 4 or 5 hours, it has a USB Type-C output and several outputs so that we can charge various devices. That if the cable type C is sold separately. It has iSmart 2.0 technology capable of adjusting the charging current to be faster and includes protection against overload, short circuit and overvoltages. Its weight is about 490 grams and it has an Amazon price of 59.99 euros.


This AUKEY model has a capacity of 20,000 mAh, allowing us to charge an iPhone X up to almost 5 times in full. It has two USB ports, AiPower technology to provide the maximum safe recharging speed and security systems against overcurrent, overheating and overcharging. The price of this external battery is 19.99 euros.


Another interesting model for its great capacity and price is this RAVPOWER model. It has 26,800 mAh of capacity, iSmart technology to ensure the fastest and safest charge, protection against overcurrent, short circuits, allows simultaneous charging of up to 3 devices and offers up to nine days of use with a single recharge. Its price on Amazon is 39.99 euros.

Xiaomi Power Banks

The famous Asian manufacturer has several models of power banks or external batteries in its wide catalog of products. Xiaomi external batteries can be a great alternative and there are certain models that we can buy from sites like Amazon. This is the case of the Mi Powerbank 2C a model with a capacity of 20,000 mAh that has dual USB output and a port compatible with QC3.0 devices. Its weight is 358 grams and the price is 31.90 euros on Amazon.

Samsung EB-P1100BPEGWW

This Samsung model is an external battery with a capacity of 10,000mAh with two microUSB ports and that also supports fast charging. A power bank of reduced weight and size, since it only weighs about 200 grams and therefore, we can carry it in our pockets every day in total comfort. Its price is 24.99 euros.


This other model from RAVPOWER is an external battery with 10,000 mAh of capacity that has an ultra slim design and that also has 3.0 fast charge both input and output. It has a high-density lithium polymer battery inside and functions against overload, over discharge, overheating and over voltage for a price of 20.99 euros on Amazon.

Anker PowerCore AK-A1263011

With a very compact design we also find this model from the famous manufacturer Anker. It has a capacity of 10,000 mAh, fast charging technology PowerIQ and VoltageBoost, exclusive to Anker and that combined, provide a high charging speed. It also has its own MultiProtect technology, with protection functions for the device against any unforeseen event. Its price is 21.99 euros.

Anker PowerCore AK-A1109031

Another of the external batteries in this compilation is this Anker PowerCore with a capacity of 5,000 mAh. A compact charger with Anker PowerIQ and VoltageBoost technology for fast charging in a cylindrical design. It also has its own MultiProtect technology, with protection functions for the device against any unforeseen event such as overvoltage, overload…. Its price is 21.99 euros.


This is another external battery similar to the previous one, but in this case from the manufacturer AUKEY. With the same capacity, 5,000 mAh and a cylindrical design, this model has AiPower technology to offer a higher charging speed and important safety functions to protect it from overloads, overheating or excessive current. Its price on Amazon right now is only 9.99 euros since it is with a 52% discount.

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