ON THE WAY&reg;10pcs 16340 CR123A LR123A 3.6V 1200mAh Rechargeable Li-Ion Battery with Charger Perfect for Flashlight, Photo camera.Warm tips: Before purchase, please make sure the battery voltage corresponds with voltage mark on your device Capacity: 1200mAh Voltage: 3.7V The voltage of full charge & empty condition is 4.2v & 2.75v respectively LED indication for Power On / Charging / Full charge