Streamlight SL-B48 USB Lithium Ion Battery - 2 Pack Silver. Specifications for Streamlight SL-B48 USB Lithium Ion Battery: Manufacturer: Streamlight Color: Silver Battery Quantity: 2 Battery Capacity: 5000 mAh Flashlight Model: SL-B48 Battery Type: Lithium Ion Battery Chemistry: Lithium Features of Streamlight SL-B48 USB Lithium Ion Battery SL-B48 battery pack with USB-C charging port 3.6V 5000mAh Fits select Streamlight flashlights that take SL-B48 battery packs Charges in 5 hours and features charge status indicator Integrated safety circuit protects the battery from over discharge and overcharge Charge indicator: red when charging green when charged Package Contents: Streamlight SL-B48 USB Lithium Ion Battery 2x SL-B48 Rechargeable Battery Pack Charge Cord Lanyard Streamlight 88133: SL-B48 USB Lithium Ion Battery - 2 Pack Silver