Fenix continues to increase their focus while desiring to keep safety as the highest priority. With this new ARB-L18-3400mAh 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.
18650 batteries are perfect for powerful Fenix LED flashlights since they are rechargeable, have a long battery life, and can handle the power requirements of advanced LED flashlights.
- Fenix ARB-L18-3400mAh Rechargeable 18650 Battery
 - Button-Top Design
 - Protection circuit built in the anode with a steel hat by riveting process
 - 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: 
      
- Over-charge protection and over-discharge protection
 - Short-circuit protection
 - Overheating protection
 
 - 500 Charge Cycles: A properly maintained ARB-L18 battery is designed to retain up to 75% of its original capacity at 500 full charge and discharge cycles.
 

