The Fenix ARB-L21-5000 is a high capacity 21700 Li-ion rechargeable battery with a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.
Compatible with: PD36R, ARE-D1, ARE-D2, ARE-A2, ARE-A4.