Fenix Rechargeable Battery ARB-L21-6000B

The all-new Li-ion battery provides the voltage and power needed for extended runtime and higher lumen capacities. The ARB-L21 comes with all the bells and whistles of high-quality Fenix batteries, including protective circuits inside the anode and up to 500 charging cycles. Also included are the three sets of overheat protection: pressure relief, microporous, and PTC cathodal block.

Please note that the ARB-L21-6000 battery does NOT have the capability of being used as a power bank.
This battery is NOT compatible with lights that use an 18650 battery, and older chargers including the Fenix ARE-A2, ARE-A4 and ARE-X1 2.0. It is compatible with the Fenix ARE-D1 and ARE-D2 chargers.
Additionally, this battery is NOT compatible with the Fenix E35R purchased prior to 2025.

Product Code: FNX-ARB-L21-6000B

UPC Code: 6942870311159

Usually Ships in 5 To 10 Business Days

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Fenix Rechargeable Li-ion Battery ARB-L21-6000B. The Fenix ARB-L21-6000B Rechargeable Powerbank Battery is a little 21700 battery that has a large 6000mAh energy reserve. With just the provided USB type C cable, it can charge other USB-C devices in addition to your 21700 battery flashlights. It also allows efficient USB-C charging.
COMPATIBLE WITH Fenix HT18R, HT32, TK17, TK22R, TK30R, WF25RM, LR36R, CL27R, LD45R, PD45R ACE, PD40R V3.0, PD36R V2.0.
The list of compatible models may change in the future.

Brand Fenix
Rechargeable Battery ARB-L21-6000B
Rechargeable 6000mAh 21700 Li-ion Battery
Capacity: 6000mAh
Voltage: 3.6V
Charging Current: Recommended 1.2A, maximum 4.2A
Product Compatibility: CL27R, E35R (purchased 2025 or later), HT18R, HT32, LD36R, LD45R, LR35R PRO, LR36R, PD36R V2.0, PD40R V3.0, PD45R ACE, TK17, TK21R, TK22R, TK30R, WF25RM
Product is NOT COMPATIBLE with the following lights: BC26R, CL26R PRO, C7, E35R (purchased prior to 2025), LR35R (original), PD36R PRO, PD36 TAC, TK16 V2.0, TK20R V2.0, WF26R, HM70R, HM71R, HM75R Power Extender
Please note that the ARB-L21-6000 battery does NOT have the capability of being used as a power bank. The power bank capability is ONLY available in the ARB-L21-6000B.
Imported
UPC 6942870311159
MPN ARB-L21-6000

Size Weight: 2.82 Ounces
Length: 3.02"
Diameter: 0.87"