With this new ARB-L18-3500mAh 18650 battery, Fenix has built in features to prevent short circuits and designed multiple layers of protection within it. With the new button-top design, the new 18650 series better accommodates a variety of flashlight brands.
Button Top Design
Protection circuit built in the anode with a riveted steel hat. Riveted steel shell eliminates the risk of short circuit caused by collision and impact
Pressure Relief Vent: Expels waste gas generated by internal short circuit. Expelling waste gas prevents a cell from inflating or exploding
Three Sets of Over-Heat Protection: Overcharge protection, Over-discharge protection, Short-circuit protection, and overheating protection
500 Charge Cycles.
Length: 70 mm
Diameter: 18.6 mm
Weight: 50 g