The ARB-L16-1050UP is a rechargeable li-ion battery offering a 1050mAh capacity, specifically designed for lights requiring a 16340 battery. This model features an integrated USB Type-C charging port for convenient recharging without an external charger. It includes a built-in protection circuit in the anode to safeguard against short circuits, overcharge/discharge, and overheating. Engineered for longevity, it endures approximately 500 charge cycles, significantly reducing the need for disposables.