Fenix lights are powered by a wide range of battery types. From rechargeable lithium ion batteries like 18650’s and RCR123’s, to common primary sizes like AA and AAA, Fenix makes it all. The ability to find a flashlight in just the right battery configuration makes shopping for high performance flashlights much easier. You’re sure to find exactly what you’re looking for in our vast selection of Fenix LED flashlights.