Streamlight SL-B9 Battery Pack Features The Streamlight SL-B9 Battery Pack uses a lithium-ion chemistry in the 16280 size to deliver a steady 3.6 volt nominal output for Streamlight s USB-C rechargeable platform. Because the cell is rechargeable it replaces a steady stream of disposable batteries with a single pack that can be topped off through its own integrated charge port. At just 0.71 ounces each the batteries add almost no weight to a light or accessory which matters when every ounce in a duty belt or range bag counts. The silver and black finish makes the cells easy to spot and tell apart from standard alkaline batteries in a kit bag. This listing includes two SL-B9 batteries giving users an immediate spare so a light never goes dark mid-task. Having a charged backup on hand is especially useful for shift workers hunters on extended trips and anyone who relies on a Streamlight for home defense or duty use. The compact 3.26 inch length keeps the batteries easy to carry in a pocket pack or charging case alongside the host light. The Streamlight SL-B9 Battery Pack is available for sale at GrabAGun for anyone looking to keep their rechargeable Streamlight gear powered and ready. Streamlight SL-B9 Battery Pack Specifications Manufacturer: Streamlight Model: SL-B9 Battery Pack Color: Silver / Black Rechargeable: Yes Battery Size: 16280 Chemical Composition: Li-Ion Nominal Voltage: 3.6 Volts Quantity: 2 Length: 3.26 Weight: 0.71 oz Available At: GrabAGun