... built-in battery: 3.7V,2200mAh UPS battery bank for mobilephone:1. Fashionable design, aluminum shell, ... technology, which is environmental friendly. So the portable power can meet CE, FCC requirements.2. The ... battery’s service efficiency. 4. Without any external power, it can charge all the electronic equipments whose ... than 5V, e.g. iPod, iPhone, PAD, mobile phone, digital camera, MP3, Mp4 and so on. ...