Product DescriptionThe Streamlight SL-B50 protected lithium-ion rechargeable battery pack delivers dependable power for select Streamlight lights. Featuring a built-in USB-C charging port and charge-status indicator, this 3.6V, 4,900mAh battery pack is designed to work with the ProTac 2.0 handheld, ProTac 2.0 Headlamp, and ProTac 2.0 Rail Mount. An integrated safety circuit helps protect against overcharge and over-discharge, while the two-battery pack ensures you have backup power ready when you need it.Product Highlights Built-in USB-C charging port with red/green charge-status indicators High-capacity 4,900mAh, 3.6V protected Li-ion battery pack Rechargeable at least 500 times; full charge in approximately 6 hours Compatible with Streamlight ProTac 2.0, ProTac 2.0 Headlamp, and ProTac 2.0 Rail Mount Two batteries per pack for continuous operation Specs Chemistry: Protected Lithium-Ion Voltage: 3.6 Volts Capacity: 4,900 mAh Charge Port: USB-C (built-in) Approximate Charge Time: 6 hours Recharge Cycles: At least 500 Compatibility: ProTac 2.0 handheld, ProTac 2.0 Headlamp, ProTac 2.0 Rail Mount Color: Silver/Black Pack Quantity: Two batteries Charge Indicator: Red = charging; Green = charged Brand Name: Streamlight MPN: 22112 UPC: 080926221123 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.