... :2200mah. *with silicone bumper case. *Rechargeable,backup and emergency. for iphone5 2200mah external battery case for chargingSpecificationCapacity: 2200mAh Cell type: lithium polymerInput: DC 5V 500mA ... external backup battery case for iphone5, tightly fit,extremely slim;2.High quality polymer battery, very safe;3.EXcellent materials and workmanship make it has best using ...