Portable batteries, not all are created equal: what you need to know to choose the right one for your use

If you’ve ever wanted to buy a power bank to ensure you have a charging source wherever you go, you’ll have noticed how many models there are and the different configurations they offer. Well, we will try to clarify this whole question for you, showing you all the information you will need.

Having an external battery will guarantee us that we can recharge our smartphone, tablet or other type of device when we need it, without depending on the electricity network.

We are talking about devices that have also evolved and that today offer many features that we did not have years ago and that can now be very interesting, favoring recharging.

But it is not only that, but we also have different types of external batteries to offer solutions to different situations in which we may find ourselves immersed. This means that the versatility offered by these devices is much greater today and the more time passes, the more improvements they will incorporate.

In order to get the most out of it, it is best to know all the types of existing batteries that they offer us and from there be able to decide which one is the best for our situation and financial capacity.

Types of external batteries

As usual, there are different types of external batteries, to try to complete all the circumstances in which a device of this type might be needed, to recharge a smartphone, tablet or any other device compatible with this system of charge.

We can include external batteries in these types:

  • Normal: are all those batteries that have no particularity. That is, those with more or less charge, rectangular in shape, charge indicator, which usually have a USB to recharge it and one or two more to connect our devices, such as smartphones or tablets , among others.

INIU power bank

  • Pocket size: They are those that are designed to be transported from one place to another and that not only weigh as little as possible, but also take up little space. One can find models of about 10 cm in length, weighing even less than 200 grams.

Charmast 10400 mAh mini power bank

  • Ultra thin: pocket batteries, but even more compact. We can talk about very flat models, which can measure between 8 and 9 mm, weigh around 100 grams and be able to recharge a normal smartphone battery at around 60%.

EUARY Power Bank

  • Multiple loading: They have a concept in which the number of devices we can connect prevails. There may be cases that reach capacities of more than 30,000 mAh, being able to connect 4, 5 or 6 devices at the same time.


  • Wireless: These types of batteries are very comfortable, since we will not have to connect any type of cable, although most offer us this possibility in case we have to charge more than one device. To take advantage of wireless charging, simply place a smartphone, compatible with this system, on top of the battery. In this way, the mobile terminal will start charging.

AUDIDH External Battery

  • Resistant: These are the batteries that are ready to take the occasional knock, as they have a protective cover on them, just like off-road phones. They are ideal for hiking, camping in the woods and things like that, as they also, the vast majority of the time, come with dust and water protection.

JIGA power bank

  • Solar: These are ideal if we are going to camp or somewhere where the electricity grid is not present, since with sunlight we can recharge it and thus have enough energy to connect our smartphone.

Feob Solar Charger

  • With fast charging: It is not exactly a type of battery, but we can have this power in several of the models that we have just seen. Thanks to fast charging, we can significantly reduce the time it takes to use the smartphone to recover its battery.

Anker PowerCore III Elite

What to look for when buying a power bank

Now that we know what types of external batteries are currently on the market, we will be able to better analyze them and know what we have to look at to know that this battery is right for us.

In fact, as usual, there is not just one reason to opt for a battery, but a group of them. But knowing what these details are to look at, everything will be much easier.

  • Battery capacity: This is one of the most important parts when you want to buy a device of this type, because you have to make sure that you are going to have a battery capable of meeting your expectations. Battery capacity is measured in mAh, as is the case with our smartphone.
  • Number of devices: If what we want is to have a battery that allows us to charge two devices at the same time, we will see how it is something that practically all of them offer. From there, we must be more careful and buy those that adapt to our situation.
  • Loading speed: here it is also relevant to look at how fast the battery charge can reach. Obviously, the better, the less our terminal will be connected to the battery.
  • New technologies: the better the external battery, the better the connectors it will have. It is advisable to always have a USB Type C key at least.
  • Weights and measurements: Being external and transporting from one place to another, we must try to have a good agreement between the number of milliamps available, the weight and the dimensions, because this is going to make the difference between a manageable battery and one that is not not difficult to carry, with another uncomfortable and difficult to carry.
  • Additional Features: we can also look at some extras that some batteries have, such as the fact that they have an LED display to indicate its charge and the devices that are thus connected, a flashlight also LED, some type of extension cord and even some type of blanket or bag to carry it from place to place.

With everything you’ve read, you already have all the information you need to buy the best power bank for you, your needs, and your budget.

You can tell us which one you opted for through our social networks, because we want to know your opinion, which is very important to us.