... smart device protection; With over charge/discharge, over loading, short circuit, lightning protection, etc function. Easy to use:1, ... 0 port) 1-2, when charging, the LED indicator is Red. It turns to Green color when ... the left electric quantity. 2-2, Green LED indicator shows capacity: 25%-75%-100% 3, How to ... , press down the switch to light the LED indicator, you will find the capacity shows 25%-75 ...