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