External Rechargeable Backup Battery (2200mah) Case with Front Cover for Apple iPhone 5 - Black Built-in Battery Backup gives you an 2200mAh capacity. Battery Type: Li-polymer battery cells.Charging time: 4-6 hours. Weight: 73.6g Protective case protects your phone from unwanted damage Specifically Designed for Apple iPhone 5 Built in case with iPhone 5 Lightning connector - no cables required when in use