This is a single Li-Ion 18500 battery cell. Ideal for low power devices such as the Frsky X-Lite radio. These cells have a discharge rate of 10C so are not suitable for high current applications such as vaping.
Please note that you will need a Li-Ion Charger to recharge these batteries.
Please note that this is a lithium based battery and it is important to take care while using, storing and charging this battery, please see this lithium battery guide for more information.
Battery capacity may vary slightly approx +/-50mAh