Fenix - Battery 18650 Rechargeable with USB Port
The ARB-L18-2600U battery can be charged by its own USB port and by the charger as well. A protective circuit is built into the anode and covered with a riveted steel hat. The battery is fully covered with the steel shell, thus the potential risk of short circuiting caused by collision or impact is hugely eliminated.
•Micro-USB charging port
•Short circuit protection
•500 charge cycles