The Power Bank module is a 4 chip solution designed for mobile power. It includes a load management module. And also, an LED indication module and a protection module. This board is mostly used in batteries for boosting. It has a low Static Current, as a result, the whole circuit only consumes 2.1mA. There is no need for manual operation on this board. Excellent on-board blue backlight displays the power capacity with 0-100%.