Fenix Flashlight ARB-L21-4000P 21700 Rechargeable Lithium-Ion Battery (3.6V, 4000mAh) High-Capacity Battery, Recharges up to 500 Times, Built-In Protection Circuit, Pressure Relief Vents Expel Waste Gas BATTERIES-Universal Batteries & Chargers
Fenix Flashlight ARB-L21-4000P 21700 Rechargeable Lithium-Ion Battery (3.6V, 4000mAh) High-Capacity Battery, Recharges up to 500 Times, Built-In Protection Circuit, Pressure Relief Vents Expel Waste Gas BATTERIES-Universal Batteries & Chargers