The Fenix ARB-L21-5000U 21700 USB Type C battery, is twice as powerful as the common 18650/2300mAh battery.
The ARB-L21-5000U has a built-in Type-C fast charge port to recharge the battery without a charger. The ARB-L21-5000U is also compatible with external chargers (recommended chargers: Fenix ARE-D1, Fenix ARE-D2, Fenix ARE-A2, Fenix ARE-A4 smart charger).
Safety and good performance of the battery is ensured by multiple protection circuits and riveting technology of the steel shell and pressure relief vents.
Size Ø21.5 x 76 mm
Weight 72,5 g
High capacity of 5000 mAh
Integrated USB type C charging port
LED indicators for charging status (red = charging, blue = ready)
Unique structural design for improved shock resistance
Built-in overcharge, overdischarge, short circuit and three sets of overheat protection to ensure safety and good battery performance
Designed to retain up to 75% of its original capacity after 500 full charge and discharge cycles.
Technical details
Category Rechargeable battery
Type Li-ion
Dimensions 21700
Rated voltage 3.6V
Capacity 5000 mAh
Charging current Charging through its own USB port: 2A, charging through the charger: 1A (recommended), 5A maximum.
Discharge 8A (m
Warranty 12 months
