USTOP&trade;Black Small waist 2600mAh Portable External Battery Power Bank Backup Charger for iPhone 5, 4S, 4, iPad 4, 3, 2 Galaxy Nexus, Blackberry, HTC One Mini, LG, Motorola,Nokia Capacity: 2600mAh Cell: 3.7V/18650 Input: 5V/1A; Output: 5V/1A Charging time: about 5 hours Cycle life: at least 500 times