Stream Light- Streamlight SL-B26

Streamlight SL-B26 Protected Li-Ion Micro-USB Rechargeable 3.7V Battery Streamlight SL-B26 batteries charge in 5 hours with integrated safety circuit and built in PTC surge protector to protect batteries. LED battery charge indicators displays charge status for batteries. Compatibility: Streamlight's battery of choice for the following Streamlight flashlights: Stinger 2020, ProTac HL 5-X USB, PolyTac 90 X USB, Right Angle Light PolyTac X USB, ProTac 90 X USB, ProTac HL USB, ProTac HL-X USB, ProTac HL USB Headlamp Siege X USB, ProTac 2L-X USB, and Vantage 180 X USB Specifications:   Length: 2.75 inches (7.0 cm) Diameter: 0.744 inches (1.89 cm) Maximum 1.7 oz. (48g) Pack of 2