... alternative mobile power: 1. DC input: 5V , 1000mA 2. DC output: 5V, 1000mA 3. built-in battery: 3.7V,5500mAh 5500mA moving power supply with ... automatically.4. Without any external power, it can supply power for all the electronic equipments whose output is less than 5V, e ... .g. iPod, iPhone, PAD, mobile phone, digital camera, MP3, Mp4 and so on. 5500mA moving power supply ...