Capacity of battery 7000mAh input DC5.0V/1000mA output DC 5.0V/1000mA Battery polymer lithium ion battery Specifications: Capacity of battery7000mAhinputDC5.0V/1000mAoutputDC 5.0V/1000mABatterypolymer lithium ion batteryCan be used forPDA,PSP,MP4,Mobile Telephone,IPhone,Bluetooth Earphone etcportmini USBcharing time9-10 hoursoutput interfaceUSB 7000 mAh Slim Double USB Power Bank