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Fenix ARB-L21-5000U Rechargeable Battery

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This item ships to Hong Kong only.

Free delivery: $99+ (Limited-time offer)
24-48 hour express delivery
90-day return period

7 items left

2025-12-06 2025-12-13 Ready Stock 現貨訂單 Pre-order 預售訂單 Gift Cards 禮品卡 Error 錯誤

ARB-L21-5000U is a high capacity 21700 Li-ion USB rechargeable battery built for more power and longer runtimes. This battery has its own USB-C charging port for quick/easy charging without the need for a separate charger. Additional features include a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. Pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion. Battery capacity up to 5000mAh. 500 charging cycles. This product will only work in those models supporting 21700 batteries. A USB-C charging cord is NOT included. Important Note:

THIS BATTERY IS NOT COMPATIBLE WITH 18650 FLASHLIGHTS OR OLDER STYLE CHARGERS. COMPATIBLE CHARGERS ARE THE FENIX ARE-A2, ARE-A4, ARE-D1, ARE-D2, OR ARE-X1 V2.0.


MORE INFORMATION

Specifications of the ARB-L21-5000 Rechargeable Battery

  • 5000mAh high capacity
  • USB Type-C rechargeable battery (charging cord NOT included)
  • Protection circuitry to prevent short circuits
  • Pressure vents to prevent explosions
  • 500 charge cycles
  • Indicator light on battery is red while charging, blue when charged
  • Compatible with all lights using a 21700 size battery. 

Capacity: 5000mAh
Voltage: 3.6V
Charging Current: Recommended 1A, maximum 5A
Weight: 2.6 ounces (72.5g)
Size: Length: 2.99″ (76mm) Diameter: 0.85″ (21.5mm)
Warranty Period: 12 month from date of purchase