Spectifications: Moblie Charger Capacity:4000MAh/14.8wh Input:Mini USB 5V/1A Output:USB5.5V+/-0.2V/0.7A Size:4.2"X2.2"X0.52" Weight:130g Charging time:6-8hrs. Features: Highcapacity4000mAhisequivalentto4-7timesoftheregularmobilephonebattery, RechargeableLithium-ionbattery,ituptomorethan500circles,aftermorethan500 circles,thepowercanstillremain80%. IIntellectualprotectionchip:Protectforovercharge,overdischarge,overloadandshort circuitprotection. PortableBatteryCharger4000mAhcanbeusedforforCellPhones, SupportsCellPhones,Phone,/MP3,PSP(5hours) all, Ninendo GameboyandanystandardUSBconnectorproducts.Including5pcsofcelltipswhich willconvert5Voutputtofityourvariousapplication.