The Fenix 21700 Rechargeable Battery (ARB-L21-5000) is a Premium Quality High Capacity 21700, 5000mAh Lithium - ion battery specifically designed for high intensity flashlight use and is the perfect companion for Fenix 21700 powered lights.
The Fenix 21700 Rechargeable Battery + USB (ARB-L21-5000U) is a Premium Quality High Capacity 21700, 5000mAh USB-C rechargeable Lithium - ion battery specifically designed for high intensity flashlight use and is the perfect companion for Fenix 21700 powered lights.
Established in 1977
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