The Fenix ARB-L18-4000 is a high-performance 18650 lithium-ion rechargeable battery, offering a massive 4000mAh capacity to ensure longer runtimes for flashlights and other power-intensive devices.
Built with advanced safety features, this battery includes an integrated protection circuit to prevent overcharging, over-discharging, excessive current flow, and short circuits, ensuring safe and reliable operation.
Additionally, the pressure relief vents built into the battery release excess gas in the unlikely event of an internal short circuit, preventing swelling or explosion.
With a maximum discharge current of 7A, this battery is optimized for high-output flashlights. It also supports up to 500 charge cycles, retaining 70% of its original capacity, making it a cost-effective and environmentally friendly choice in the long run.
Key Features:
- High Capacity: 4000mAh for extended runtime.
- Advanced Protection: Built-in overcharge, over-discharge, overcurrent, and short circuit protection.
- Durable Construction: Steel shell design prevents impact damage.
- Pressure Relief Vent: Prevents swelling or explosion in case of internal failure.
- Long Lifespan: Up to 500 charge cycles while maintaining 70% of capacity.
- Eco-Friendly: Free of mercury and lead.
Specifications Table:
| Feature |
Details |
| Capacity |
4000mAh |
| Voltage |
3.6V |
| Recommended Charging Current |
2A (Maximum: 4A) |
| Maximum Discharge Current |
7A |
| Dimensions |
Length: 69.2mm; Diameter: 18.75mm |
| Weight |
55g |
| Charge Cycles |
Up to 500 cycles, retaining 70% capacity |
| Protection Features |
Overcharge, over-discharge, overcurrent, and short circuit protection; pressure relief vents |
