20000mAh Universal Backup USB Battery Power Bank External Battery Pack Charger(white)features:High capacity 20000mAh external backup battery for your iPhone 3G,3GS,4G,4GS,iPod, iPad 1,iPad2 ,the new *Pad and mobile phones.*Designed to provide power for your iPhone, iPad, iPod and mobile

20000mAh Universal Backup USB Battery Power Bank External Battery Pack Charger(white)features:High capacity 20000mAh external backup battery for your iPhone 3G,3GS,4G,4GS,iPod, iPad 1,iPad2 ,the new *Pad and mobile phones.*Designed to provide power for your iPhone, iPad, iPod and mobile phones.*Built-in 20000mAh high capacity rechargeable Li-Polymer battery .*20000mAh capability, powerful with long operation time.*be compatible with Nokia, iPhone, iPad, MP3, MP4, and other mobile phones...*the USB output, more convenient.*High efficiency of power conversion.*Electricity-saving function.*With 4 LED power indicator.*Partable, practical and long cycle life.*Safe and reliable, perfect for using on travelling and outdoor activities. Specifications:*Capacity: 20000mAh Li-Polymer*Input Voltage: DC 5.0V*Input Current: 1000mA (Max)*Duo USB output, charge 2 devices simultaneously*Output Voltage (Port A): 5.0V*Output Current (Port A): 1000mA*Output Voltage (Port B): 5.0V*Output Current (Port B): 2100mA*IC Protection for charging / overcharge / short circuit / discharge*Circle Time:≥500 Times*LED indication for Battery Status*Size: 135x70x22 mm