B001 Power Bank,Power Charger,Mobile/Portable Power Bank 1) OEM Factory 2) Cheap Price 3 ... ,CE,ROHS,FCC B001 Power Bank,Power Charger,Mobile/Portable Power Bank Hot selling mini power bank 2200mAh cheap ... time: about 4 hours ---Battery type: 18650Lithium ion -battery ---Working temperature: -10°C to 50°C ---Storage temperature: -20°C ... use only. B001 Power Bank,Power Charger,Mobile/Portable Power Bank