The 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.

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
• 3.26 in (8.28 cm); 3.0 oz (85.0 g)
• 2-year limited warranty