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If you have never encountered the purchase of an external battery, and in principle everything related to charging is new to you, then this text will definitely be useful to you. We will talk about what you should pay attention to when choosing an external battery.

So, what is a power bank, or an external battery? This is a device that stores charge and allows you to charge your devices later, usually via USB ports. The battery can charge the player, headphones, smartphone, tablet and a number of other small items. But this usually does not apply to laptops and large appliances, so you have to take this into account.

Source: thegadgetflow.com

Capacity

The first thing you need to know is the device that you plan to charge most often and its capacity. If it is a smartphone, for example, with a 4000 mAh battery, then you need to choose the right battery. For example, if you are going on a weekend hike, you may need to charge your smartphone 1-2 times additionally. In this case, 10000 mAh will be enough. And if you want to charge your tablet as well, or you are traveling for a longer period and the battery is consumed quickly, then it is better to take 20000 mAh. Always calculate consumption based on the capacity of the main unit and the number of times you need. Previously, you could find quite a few models with 2 – 3000 mAh, but now the batteries are becoming more powerful, and the batteries are getting bigger.

So, the capacity should be at least equal to the battery capacity of the device, but in this case, the more the better. 20,000 mAh is usually more than enough to successfully charge a device.

Number of slots and simultaneous charging

If you want to charge multiple devices at once, make sure that the battery has at least 2 USB slots in addition to the port through which it charges itself. You can save time and effort. It is also necessary to look at the presence of a fuse, because otherwise, your smartphone may also suffer during a short circuit. And the output power of the power bank must be equal to or higher than the power of the device, otherwise it will not charge. All this information can be found in the characteristics of your battery and smartphone.

Of course, here it is best to trust trusted manufacturers, and not be fooled by advertising tricks.

Source: Mac Sources

Weight and appearance of the device

Last but not least is the appearance of the power bank. Many devices offer a metal body and even cases. Such a device is slightly heavier, but stronger and more durable than plastic. The case should be as resistant as possible to mechanical damage, so high-quality power banks are equipped with shockproof characteristics and can withstand high loads. The device must also be scratch resistant, especially if it does not have a case, because most of the time it spends in a bag with keys and other items that can easily damage it. To preserve the appearance of the device, it is better to keep it separately.

As for the weight, it all depends on the power. You will hardly feel the weight of a standard 10,000 mAh battery in a bag, but 20 – and it will already noticeably affect. As a rule, such batteries are significantly heavier than others.

Source: NDTV Gadgets

Xiaomi offers a wide range of power banks. Xiaomi Mi Power Bank 3 is rated at 10,000 mAh and supports 18W fast charging in both directions. It features USB-A and USB-C ports to meet the demands of modern smartphones. You can charge two devices at the same time without wasting a minute. The simple design and aluminum body are designed to combine style and functionality. There are LED indicators on the case that show the charge level. Xiaomi is convenient and efficient.

Redmi Power Bank is designed for long trips and difficult situations where you need all the power you can. This battery supports 20000 mAh and has 2 USB-A, Micro USB and USB Type C connectors. It is equipped with protection against short circuits, voltage surges, overheating and overcharging. The most versatile of modern power banks, Redmi has a comfortable body and weighs 400g. This is a lot, but you will appreciate the value of the battery when the charge remains 20%, and you have another 20,000 mAh left.