Streamlight SL-B50 USB-Rechargeable Lithium-Ion Battery 2 Pack

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Complete The Look

The Streamlight SL-B50 Li-Ion rechargeable battery pack is designed for select Streamlight products (see below). This rechargeable flashlight battery features a built in USB-C port and charge indicator.


  • 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

Also available as a single.