Winten 13200 mAh WT-P132S-BK Portable Battery Pack, External Battery Pack, High Capacity Power Bank Charger, Dual USB output (5V/ 2Ah & 1Ah) - includes 7 connectors High capacity : 13200mAh 2 USB output, 5V/2 Ah ad 5V/1 Ah with the battery High security through over voltage protection, overload protection and shourt circuit Includes 7 connectors for iPad, iPhone, Nexus, Motorola, Samsung, HTC, Nokia, Improved self-discharge: After 3 year of non-use is still 75% reamining capacity