Collection: Fenix rechargeable batteries

Fenix rechargeable batteries provide dependable power for flashlights and high-drain electronics. Available in 16340, 18650, and 21700 sizes, these batteries are engineered for performance, safety, and long lifespan.

At FlashlightWorld.com, we stock genuine Fenix lithium-ion cells designed to deliver consistent output and protection against overcharging or overheating. Perfect for both casual users and professionals who rely on reliable power.

✔ 16340, 18650, and 21700 Li-ion batteries

✔ High capacity and long cycle life

✔ Safe, reliable, and rechargeable

✔ Compatible with all Fenix flashlights

✔ Fast Canadian shipping and warranty

Power your flashlight with the most trusted Fenix rechargeable batteries.