Fenix ARB-L21-4000p 4000mah 21700 Battery The Fenix ARB-L21 is a high-capacity 21700 Li-ion rechargeable battery designed for extended runtimes and optimal performance. This battery powers high-output flashlights, such as the LR35R, by maintaining higher voltage levels over longer durations. It features a protection circuit to prevent short circuits, overcharge, and overheating, along with pressure relief vents to mitigate the risk of explosions. With a capacity of up to 4000mAh and 500 charging cycles, it ensures reliability and safety for high-performance devices. Specifications of the Fenix ARB-L21 Rechargeable Battery: 21700 battery type 4000mAh high capacity Protection circuitry to prevent short circuits Pressure vents to prevent explosions 500 charge cycles Compatible with HT18, LR35R, PD36R, PD40R V2.0, TK22 V2.0, TK22 UE, and TK30 Overall Capacity: 4000mAh Overall Voltage: 3.6V Charging Current: Recommended 1A, maximum 4A Maximum output current: 18A (less than 3 minutes) Maximum continuous output current: 10A Weight: 2.5 ounces (70g) Size: Length: 2.99″ (76mm), Diameter: 0.85″ (21.5mm) Check out our other Fenix products Manufacturer website.
