USTOP&trade;Purple Square cylinder Lipstick 2600mAh Portable External Battery Power Bank Backup Charger for iPhone 5, 4S, 4, Galaxy Nexus, Blackberry, HTC, LG, Motorola,Nokia iPod Touch / Samsung Galaxy S3 S S2 S II,Casio G'zOne Commando 4G LTE Capacity: 2600mAh Cell: 3.7V/18650 Input: 5V/800mA; Output: 5V/800mA Charging time: about 5 hours Cycle life: at least 500 times