Fenix ARB-L21-4000P 21700 Li-ion Rechargeable Power Battery 4000mAh 3.6V

Sale price$44.99 CAD


Fenix ARB-L21-4000P


The Fenix ARB-L21-4000P is a High Capacity / High Draw 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.



This listing is for one Fenix ARB-L21-4000P 4000mAh Rechargeable Battery.

The images of two Fenix ARB-L21-4000P 4000mAh Rechargeable Battery

are used for illustrations only.





This 4000P battery allows a high output flashlight like the LR35R to have its turbo setting of 10000 lumens to maintain it’s output by maintaining higher voltage for longer periods of a batteries charge.





    • Button-Top Design
    • Protective circuit inside the anode
    • Multiple protection
    • Over-charge protection
    • Over-discharge protection
    • Overheating protection
    • Short-circuit protection
    • Charging Current 1A Recommended, 4A Maximum
    • Max Output Current – 18A
    • Max Continuous Current – 10A
    • 500 charging circles


  • 12 months from date of purchase


    • ARE-A2, ARE-A4, ARE-D1, or ARE-D2

    Please Note: This battery is NOT an 18650 battery and it is not compatible with 18650 battery powered lights

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