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Streamlight SL-B50 Li-Ion USB-C Battery. The Streamlight 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.

Streamlight SL-B50 Li-Ion USB-C Rechargeable Battery Pack Features:

• 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

Streamlight SL-B50 Li-Ion USB-C Rechargeable Battery Pack Specs:

• Length: 3.26 in (8.28 cm)
• Weight: 3.0 oz (85.0 g)
• Battery: 3.6V, 4900mAh, with on-board safety control circuit
• Rechargeable: 500 times
• 2-year limited warranty