Fenix ARB-L18-3400U Rechargeable Battery

Fenix ARB-L18-3400U Rechargeable 18650 Battery

The Fenix ARB-L18-3400U is a high capacity 18650 Li-ion rechargeable battery with a built-in micro-USB charging port, a protection circuit in the anode to help prevent short circuits, over charge-discharge and over heating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion. 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.