High-performance rechargeable Li-ion 21700 battery that also serves as a power bank

The Fenix ARB-L21-6000B is a powerful LI-ION 21700 battery that can be recharged via a standard USB Type-C port. It guarantees a reliable and constant power supply for your devices.

It has a very high capacity for longer use. This battery can be used as a power bank to charge other devices.

Long-lasting service with stable output

The high capacity of 6000mAh provides sufficient power and an ultra-long service life. The maximum output current of 10 A and excellent thermal performance effectively prevent overheating problems.

Reliability and low environmental cost

Multiple protections ensure the safety and performance of the battery.

Three battery level indicators provide real-time updates on the status of your battery

The battery contains no mercury or lead, minimising its negative impact on the environment.

After 500 full charge/discharge cycles, it retains up to 75% of its initial capacity.

Recommended chargers ARE-D2 ARE-D1 ARE-A2 ARE-A4

Compatible Fenix products: HT18R, HT32, TK16 V2.0, TK20R V2.0, TK17, TK22R, TK30R, WF25RM, CL27R, E35R, LD45R, PD36R Pro, PD36R V2.0, PD40R V3.0, PD45R ACE, etc.

Technical specifications

  • Voltage 3.6 V
  • Capacity 6000 mAh
  • Equipped with a USB Type-C port for charging and discharging
  • Recommended charging current 1.2 A. Maximum 3 A
  • Dimensions 22 x 77 mm
  • Weight 80 g
  • Recharge the battery every 3 months or sooner to maintain maximum battery performance.

Included in packaging

  • ARB-L21-6000B rechargeable Li-ion 21700 battery
  • Fenix USB-C cable