... wrap 4.Manufactured under ISO9001-2000 ItemPlastic 18650 box use for high voltage power supply Nominal capacity2200mahNominal voltage3.7VCharging voltage4.2V±0 ... and life time. 6.Suitable for Cameras,GPS Receivers,PDA,Clocks,Remote Controls,Safety Devices,High Drain Devices,Cordless Phone Tools, ... s product working performance & structural appearance. Plastic 18650 box use for high voltage power supply