Overcharge and over discharge protection, over-charging voltage 4.2V, over discharge voltage: 2.75V,Battery cycle life of more than 500 times;Product Description:Name: 14500 lithium-ion batteryModel: LC 14500Dimensions: Diameter: 14.2mm, High: 52mm longer than the AA batteries on the 5th & P 1.5MM or so.Nominal Voltage: 3.6VNominal Capacity: 900mAhNet Weight: 21.5 g*

Please use high quality rechargeable lithium battery charger dedicated* Diameter than the style without the shield slightly larger, make sure that your flashlights or other goods is able to accommodate this size