High-capacity 21700 Li-ion battery with 6000mAh and 10A output, featuring safety circuitry and long lifecycle.
The Fenix ARB-L21-6000 is a high-capacity 21700 Li-ion rechargeable battery designed to provide exceptional power and extended runtimes for your devices. It boasts a massive 6000mAh capacity and a 10A maximum output, ensuring your gear stays powered longer, even under demanding conditions. The battery features built-in protection circuitry that prevents short circuits, overcharging, and overheating, as well as pressure relief vents for added safety. Remarkably, even after 500 charge cycles, it retains 75% of its original capacity, promising reliable power for years to come. Please note that the ARB-L21-6000 battery does not have power bank capabilities, unlike the ARB-L21-6000B model. This battery is not compatible with devices using the older 18650 batteries or older chargers such as the Fenix ARE-A2, ARE-A4, and ARE-X1 2.0. However, it is compatible with the Fenix ARE-D1 and ARE-D2 chargers. Additionally, it is not compatible with the Fenix E35R purchased prior to 2025.
Key Features
- 6000mAh capacity for extended power
- 10A maximum output for high performance
- Built-in safety features against overcharging
- Retains 75% capacity after 500 cycles
- Compatible with Fenix ARE-D1 and ARE-D2 chargers
Technical Specifications
| Specification |
Value |
| Material | Li-ion |
| Dimensions | Length: 3.02" (76.6mm), Diameter: 0.87" (22mm) |
| Weight | 2.82 ounces (80g) |
| Power | 10A maximum output |
| Warranty | 12 months from date of purchase |
