For iPhone 5 backup power battery case,power case,external battery. 2200mAh,2500mAh2800mAh,3000mAh,4200mAh supply rechargeable For iPhone 5 backup power battery case,power case,external battery case:1.Battery Type: Li-polymer battery cells2.Capacity: 2200mAh3.Input: DC5V/500mA4.Output: DC5V/500mA5.Charging ...