mobile phone potable power charger: 1. DC input: 5V , 1000mA 2. DC output: 5V, 1000mA 3. built-in battery: 3.7V,2200mAh mobile phone ... potable power charger:It has unique circuit design, which can indicate ... is less than 5V, e.g iPod, iPhone, PAD, mobile phone, digital camera, MP3, Mp4 and so on. mobile phone potable power charger