Streamlight 22112 Sl-B50 Silver/Black 3.6 Volts 4,900 Mah (2) Single Pack 080926221116

The SL-B50 protected Li-Ion rechargeable battery pack is designed for select Streamlight products. The battery features a built in USB-C port and charge indicator. - Use the SL-B50 battery pack to power the ProTac 2.0 ProTac 2.0 Headlamp and the ProTac 2.0 Rail Mount - 3.6V 4900mAh rechargeable at least 500 times - Charges in 6 hours using USB-C input - Battery charge status indicators around the port: Red for charging green for charged - Integrated safety circuit protects batteries from overcharge/overdischarge - 3.26 in (8.28 cm); 3.0 oz (85.0 g) - 2-year limited warranty