The Streamlight SL-B9 protected Li-Ion battery pack has a built in USB-C port for charging on-the-go. Use the SL-B9 USB battery pack to power your select Streamlight flashlights.
Specifications:
- 3.6V, 4900mAh
- Charges in 6 hours and features charge status indicator
- Integrated safety circuit protects the battery from over discharge and overcharge