The Fenix ARB-L21-5000U is a high-quality 5000 mAh Li-ion battery equipped with a USB-C connector. The Fenix ARB-L21-5000U battery can be charged directly via the fast USB-C charging port located on the battery. The battery can also be charged in a charger.

The capacity of the Fenix ARB-L21-5000U battery is twice that of a conventional 18650/2300 mAh battery. The battery is safe to use as it is protected by multiple safety circuits and a steel cylinder casing that guards against external shocks and impacts. The Fenix ARB-L21-5000U battery is suitable for applications requiring high capacity and long usage time.

Please note that the 21700 battery does not fit devices designed for 18650 batteries due to its larger physical size. It only fits devices designed for 21700-sized batteries.

Features:

• Type: 21700
• Nominal voltage: 3.6 V
• Capacity: 5000 mAh
• Charging current: recommended 1 A, max. 5 A
• Discharge current: 8 A (max)
• Charging status indicated by LED lights (red = charging, blue = charge complete)
• USB-C charging port (USB-C cable sold separately)
• Can also be charged in a conventional charger (Recommended chargers: Fenix ARE-D1, Fenix ARE-D2)
• Advanced protection circuit
• After 500 charge cycles, approximately 75% of the battery capacity remains
• Multiple battery pack protections (overcharge protection, over-discharge protection, short circuit protection, overheating protection)
• Steel protective structure effectively shields the battery from potential impact-induced short circuits and other hazards
• Dimensions: Ø 21.5 x 76 mm
• Weight: 72.5 g
• Warranty: 12 months
• Packaging: 1 piece blister pack