Lenmar Mutant 20800mAh High Capacity External Battery Pack with 4 USB Ports (6.8A total output) for Fast Charging iPhone, iPad, Samsung Galaxy & Tablets. AC Power Supply Included: 10X More Charge for your Smart Phone 20,800mAh external battery pack with 4 USB ports: Charge up to 2 tablets and 2 mobile phones simultaneously Two 2.4A USB ports designed to charge the new iPad, tablets* and smartphones Two 1A USB ports designed to charge iPhones, Samsung, Mobile Phones and other USB powered Devices Includes AC power adapter &ndash; Recharges the Mutant in 10 hours One year warranty