NITECORE NL189 3400mAh Protected Li-ion 18650 Rechargeable Battery

Features: 18650 Li0ion rechargeable battery 3400mAh 3.7V 12.6Wh Integrated battery overcharge/discharge protection circuits 500+ charge/discharge cycles High discharge rate Built in PTC to inhibit high current surge Pressure relief valve activates in the event of a rapid temperature increase Length 69.2mm, Diameter 18.4mm, Weight 47.6g Internationally insured by Ping An Insurance (Group) Company of China, Ltd. Note: This is a protected 18650 with a button-top. This battery will be too long for devices that require an unprotected flat-top 18650. Many commonly found vape devices are made with smaller battery compartments that will not be large enough for this battery.