The next generation of 18650 batteries are here. Introducing the top-of-the-line Fenix 18650 battery--an amazing 3500mAh rating. Fenix has increased its emphasis on safety by building in features to prevent short circuits and design multiple layers of protection. The new button-top design better accommodates a variety of flashlight brands. Fenix continues to be an industry leader in lighting and battery innovation.
Pressure vents to prevent explosions 500 charge cycles Protection circuitry to prevent short circuits
