Naztech PB5200 Universal 5200mAh USB Power Bank Battery charger /extended Battery for all Tablets/MP3/Smartphones /iPod/Cameras Function Button, LED Battery Indicator, LED Light Micro USB (Input), USB (Output) Micro USB, iPhone/iPod/iPad Connectors, Retractable Cable Included Specifications: Battery Type: Lithium-ion, Output: USB 5V, 1A, Charge Time: Up to 6.5 hours, Cable Length: 2.0-Feet, Weight: 272g Protection: Short Circuit/Over Charge Compatible with Apple iPad, Apple iPad 2, Apple The New iPad, Apple iPhone, Apple iPhone 3G, Apple iPhone 3Gs, Apple iPhone 4, Apple iPhone 4CDMA, Apple iPhone 4S Also Compatible with most Cell Phone Brands and Models: BlackBerry, HTC, HP, Motorola, Samsung