The protection circuit is built in the anode with a steel hat by riveting process. So the ARB-L18-3500 can be fully covered with steel shell and eliminate potential risk of short circuit caused by collision and impact.
Features of Fenix ARB-L18-3500:
3500 mAh large-capacity battery with outstanding performance
The battery has triple over-heat protect for safety and reliability
Built in over-charge, over-discharge protection circuit to ensure the maximum performance of the battery
The circuit board has front and back protections to make it more impact-resistant and reliable
Compact design, suitable for high-intensity flashlights
No battery memory effect, negligible self discharge
3.6 Volt
Charging Current: Recommended A1, maximum 2A
Weight: 49g Size: Diameter 18.5mm with a height of 68mm