Mini Pocket Size 10000mAh power bank

How do you think the portable power bank will damage smartphone battery life?

The answere is NOT, and you just follow some tips as following:

First of all, be sure to check the capacity of our power bank capacity is higher than

Our devices, for example, your phone capacity is 5500mAh than a power bank of capacity 5000mAh, the power bank will not charge it fully from 0-100%, if power bank which capacity is 10000mAh,then it will charge your phone from 0-100%.

Secondly, be sure to check the voltage rating of your smart phone while buying or using a power bank.most of smartphones ,have the rate of 5V. Make sure your power bank also has the output rating of 5V. If it's lower than 4.2V, the power bank will drain your phone’s battery instead of charging it. And if it’s more than 5V, it will simply damage the circuit of your device by overloading.

Also consider the input rating of your device. Most devices have a rate of 1A or 2A at a voltage of 5V. If your phone draws a current of 1A at a voltage of 5V, then your power bank should have the same or slightly higher rating such as 5V/1A or 5V/2A. If it’s less than 1A, it would heat up your phone and may lead to explosion of the battery. Same goes for higher ratings.

As long as you avoid the aforementioned situations, you have nothing to worry about while using a power bank.