Knowledge Of Power Bank

What types of Power Banks are there?

Three major types of Power Bank found on the market today:
1. Universal Power Bank. They come in many sizes and configurations which can be tailored to your device requirements and to your budget.
2. Solar-Charged Power Bank. They have photovoltaic panels which can trickle-charge the internal battery when placed in sunlight. Solar charging isn't fast, so they can usually charge via cable as well.
3. The third type of Power Bank is the older-style battery phone case. While they can be handy, this type of Power Bank has very narrow device compatibility.