... HT002 3.Voltage:5V 4.Capacity:2200mAh external battery power for mobile phone battery Basic parametersOutput Voltage: DC5.0V±0.25VOutput Current ... and high-precision power management functions; by matching a connector or use a peripherals USB data line can be used ... s,uch as mobile phone, iPhone, PSP, IPOD, MP3,MP4, PMP, GPS, Bluetooth, digital cameras external battery power for mobile phone battery