K2 Energy K2C123A 2 Slot Portable Lithium Ion CR123 Battery ChargerK2 Energy CR123 Battery Charger has 2 slots for placing your rechargeable CR123 batteries. Comes with DC plug and is light weight for easy travel. Keep your lithium ion batteries fully charged with the high quality K2 lithium Ion battery charger, great for home or office keep spare CR123 batteries charged in case of an emergency or just as back ups when your device calls for freshly charged batteries.K2 Energy K2C123A Battery Charger Specifications AC Input Voltage: 50/60Hz 100V-240V DC Input Voltage: 12V (DC Plug Included) Input Current: 250mA Output Voltage Load: 3.7V 300mA ?50mA BATTERIES NOT INCLUDED WarningUse special caution when working with secondary lithium cells, they are very sensitive to charging characteristics and may explode if mishandled.Protective Circuit Board is required when making packs Make sure user has enough knowledge on secondary lithium rechargeable batteries in charging, discharging and assembly before use.Put the batteries in fire-proof container in chargingNever leave batteries unattended when chargingDo not put batteries on wood surface or carpet when charging