... of backup battery and charger.Provide convenient and simple charging service.Suitable for Suit for ... iPad 1, iPad 2, Samsung Tablet PC, iPhone4, iPhone4S , iPod, iPod Touch, Players, Mobile Phone ... OEM & ODM offered Advantages:1) High capacity battery, High efficiency output.2) Intelligent MCU ... 6) Auto power off, make better use of battery energy.7) Compatible for all usb 5V device ...