Product DescriptionThe Streamlight SL-B9 is a protected lithiumion rechargeable battery pack designed for select Streamlight lights. Each cell features an integrated USBC charging port with an LED status indicator and onboard safety circuitry for reliable, convenient charging. This 2pack provides a compact 3.6V, 850mAh power solution and is compatible with Streamlight TLR7X, TLR7 HLX, and Sidewinder X only.Product Highlights Integrated USBC charge port with red/green charge status indicator 3.6V, 850mAh LiIon cells with onboard safety control circuitry Approx. 2.5hour recharge time using most USB power sources Compatible with Streamlight TLR7X, TLR7 HLX and Sidewinder X only Economical alternative to disposable CR123A cells; two batteries per pack Specs Chemistry: LithiumIon (LiIon) Nominal Voltage: 3.6V Capacity: 850mAh per battery Charge Port: USB TypeC Charge Time: Approximately 2.5 hours Recharge Cycle Life: Up to 300 charges Length (each): 1.36 in Weight (each): 0.7 oz Pack Quantity: 2 batteries Compatibility: Streamlight TLR7X, TLR7 HLX, Sidewinder X Country of Origin: Engineered in USA; made in China UPC: 080926202375 Manufacturer Part Number: 20237 Brand Name: Streamlight Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.