... 3Cell type : Li-polymer batteryCapacity: 6600mAh/ 23WhInput:mini USB DC 5V ,1.0A (Max)Port 1 ... , the LED indicator is Red. It turns to Green color when full charged. 2, How to know the power bank's ... electric quantity? 2-1, press down switch button to check ... LED indicator shows capacity: 25%-75%-100% 3, How to charge cell phone, iPhone, iPad1, iPad2 or MP3, ...