... high conversion efficiency For iphone,PDA,MP4... 2200 mAh Universal Portable Power Bank For iPhone Specifications: Capacity: 2200mAh Input: 5v/500mAh ... overcharge, over discharge, overloading, and short circuit. The mobile power pack fits for mobile phone, Mobile phone, MP3/MP4, ... size: 57*40*37.5cm 118pcs/CTN*Net weight: 28.0KG Gross weight: 29.0KG 2200 mAh Universal Portable Power Bank For iPhone