... extra power bank-3Cell type : Li-polymer batteryCapacity: 6600mAh/ 23WhInput:mini USB DC 5V ,1.0A (Max)Port 1 Output: 5 ... , Green LED indicator shows capacity: 25%-75%-100% 3, How to charge cell phone, iPhone, iPad1, iPad2 or MP3, MP4, PSP etc digital ... USB cable to connect with power bank, the other port connect to charging device automatically.3-3, select the correct connect for your cell phone, or ...