null
Free Shipping Free U.S. Shipping
Coupon Icon
Fenix Loyalty Program

Fenix Rechargeable 21700 Li-ion Battery - 4000mAh - OPEN BOX

$22.97

    Fenix ARB-L21-4000P reverse side 21700 battery
    Click to see 4 more pictures

    Fenix Rechargeable 21700 Li-ion Battery - 4000mAh - OPEN BOX

    $22.97
    SKU:
    OB-ARBL214000P
    s
    • Have Questions?

      + 1-877-449-3301

    • GeoTrust Secured
    Product Type:
    Battery
    Battery Type:
    21700
    fbt:
    related products

    Frequently Bought Together

    Please choose options for all selected products

    Product Description

    The all-new Fenix rechargeable 21700 battery is designed for large current output. The maximum current for the ARB-L21-4000P is 18A, with a continuous output current of 10A. Why is this necessary? The higher current allows the 21700 battery longer runtimes in flashlights. As with all Fenix rechargeable batteries, the 21700 4000mAH has three sets of overheat protection, including pressure relief, microporous, and PTC cathodal block. The pressure relief vents all gas to be expelled; this prevents secondary hazards. 

    alert.jpg THIS BATTERY IS NOT AN 18650, AND IT IS NOT COMPATIBLE WITH 18650 FLASHLIGHTS OR OLDER STYLE CHARGERS. COMPATIBLE CHARGERS ARE THE ARE-A2ARE-A4ARE-D1 OR ARE-D2.

    Specifications

    • Type - ARB-L21-4000P
    • Size - 21700
    • Capacity - 4000mAh
    • Voltage - 3.6V
    • Charging Current 1A Recommended, 4A Maximum
    • Max Output Current - 18A (Less than 3 Minutes)
    • Max Continuous Current - 10A
    • Weight - 2.47 Ounces 
    • Dimensions - 2.99" Height x 0.85" Diameter
    • Warranty - 12 Months Free warranty from date of purchase
    • Compatible with lights like the LR35R, PD36R, PD40R, TK22v2, TK22UE, and E35v3
     

    Reviews

    Fenix ARB-L21-5000U USB rechargeable battery with title

    Fenix

    Fenix 21700 Rechargeable Battery - 5000U

    $25.95

    This 21700 battery from Fenix can handle twice the power of a standard 18650 battery. The additional mAh's allow flashlights like the PD36R and TK22 to have longer run times. What makes this 21700...

    Add to Cart
    Fenix LR35R Flashlight

    Fenix

    Fenix LR35R Rechargeable Flashlight

    $199.95

    The newly released Fenix LR35R Flashlight that was revealed at Shot Show 2020 as the TK39R has finally arrived at Fenix Store under a new name, LR35R! This powerful flashlight has a similar body to...

    Add to Cart
    Fenix E35 V3 flashlight side view

    Fenix

    Fenix E35 V3.0 EDC Flashlight - 3000 Lumens

    $74.95

    Portable and Powerful are the only things that comes to mind when you talk about the all-new Fenix E35 V3.0. This new and improved version only measures 4.6 inches in length and has a total of 3000...

    Add to Cart
    ×
    <