Fenix ARB-L21-5000 21700 Li-ion battery, 5000 mAh

The Fenix ARB-L21-5000 21700 Li-ion battery has a capacity of 5000 mAh. The battery has enough power and offers stable performances. It is also two times as powerful as a regular 18650/ 2300 mAh battery. But, please note: a 21700 battery does not replace the 18650 battery. This ARB-L21-5000 battery can only be used in various flashlights that were specifically designed for this type.