Rechargeable battery Fenix ARB-L21-5000 21700

Product no.: 3285

ARB-L21-5000 21700 rechargeable Li-ion battery, sufficient power, steady performance, the capacity of the 21700 battery is twice as powerful as the common 18650/2300mAh battery. Which provides the lighting tools with sufficient power and longer duration. Multiple protection ensures the safety and good performance of the battery.


  • 5000 mAh large capacity
  • Unique structural design for better impact-resistant
  • Built-in over charge, over discharge, short circuit and three sets of over-heat protection ensure the safety and good performance of the battery
  • Designed to retain up to 75% of its original capacity at 500 full charge and discharge cycles
  • Recommended chargers Fenix ARE D1 single channel charger or Fenix ARE D2 dual channel charger.

Technical details

Type Li-ion
Dimensions 21700
Nominal voltage 3,6 V
Capacity 5000 mAh
Charging current 1A (Recommended), 5A (Maximum)
Discharge 7,5A
Size Ø21,5 x 76 mm
Weight 72,5 g
Warranty 12 months
Includes 1 pcs
Note This product will only work in those models supporting 21700 batteries. Currently recommended for the HT18, PD36R, TK22 V2.0, and TK22 UE STRIKER. A USB-C charging cord is NOT included.

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