How a Power Bank Works

Power banks have already become a necessity. If it is not one yet, it will not be long before it becomes a basic need in every person’s day-to-day activities.

Unfortunately, not so many people really understand how it works and most sellers do not really take time to explain their basic functions. It is because of this that many people tend to buy sub-standard phone chargers or choose incompatible power banks for their devices.

Understanding how a power bank works will help would-be buyers get the right kind of power bank for them may it be for personal use or for custom promotional products.

The most basic fact about these gadgets that people overlook is the fact that like mobile phones they also come in different specifications. They can have varying battery capacity which starts at around 1,000 mAh and can go as high as 20,000 mAh. The battery capacity tells how long it can be used and how many devices it can charge.

Because of their varying battery capacity, they are not compatible to all kinds of devices. Ideally, if a person has a mobile phone that has around 4,000 mAh, getting a power bank that has a lesser power capacity will be useless. Well, the power bank might still be used to charge the phone but it will never be able to fully charge the device. This means that a power bank cannot efficiently charge all kinds of devices. Thus, it is important to make sure that both the power bank and the device are compatible in term of power capacity.

Their charging function is also dependent on their output current value, or the amount of electricity they can give off, which is either around 1A or 2A. This indicates the rate at which a power bank can charge a device.

Power banks also need to recharged. Yes, they are meant to charge other devices but as they too have their own battery storage, they also need to be charged every now and then. There are also power banks that could be charged through solar power but the charging might be a little bit slower. How fast or slow a power bank can be charged depends on its input current which could also be around 1A or 2A.

They can come in various sizes. In most cases, the bigger the power bank is the bigger battery it has, thus the bigger its electrical capacity. Most power banks use Lithium-Ion batteries which are much affordable but has lower mAh capacity. There are also those that use Lithium-Polymer batteries which tend to be larger than the Li-ion.

Lastly, they can be personalized according to the user's preference. Custom phone chargers are becoming more and more popular. The core part of the power bank is the batteries and they are enclosed in protective casing. The casing can be fashioned into different shapes and could also be printed on for more customization.