... Charging Time: about 6-8hours Compatible: Any brand Mobile, iPhone, iPod,iTouch, MP3, MP4, PDA, PSP, D.C, Laptop, Camcorder, etc. ... 24.5mm Other specifications:•LED indicator shows remainning capacity•Advanced and intelligent chips provide over-charging, over-discharging, over-load ... and short-circuit protection•Working temperature: -10°C-45°C• ...