... polymer lithium-ion battery 3 power bank Battery Capacity:5200mAhBattery Cell Type:18650 lithium-ion battery cellsOutput Power:max. 5WRated ... Suitable for Iphone ,Ipad ,Ipod ,Mp3/Mp4 ,PSP,PDA, Bluetooth, Cell phone, Digital camera, MID and so on . 2. A+ Grade battery ... can improve the output conversion rate over 85% . Cheap 7 different colours 5200mAh mobile phone tablet pc backup battery- power bank