Streamlight SL-B50 USB-C Rechargeable Battery 3.6V 4900mAh

The Streamlight SL-B50 is a protected lithium-ion rechargeable battery pack designed to power select Streamlight handheld flashlights and rail-mounted weapon lights. Rated at 3.6V and 4900mAh (17.64Wh), this proprietary pack is rated for at least 500 recharge cycles, providing long-term service life for duty, training, and everyday use.

The SL-B50 integrates a built-in USB-C charging port and an onboard charge indicator, allowing the battery to be topped off directly from any standard USB-C cable without a separate charger cradle. A full charge takes approximately 6 hours, and the protected Li-Ion cell design includes built-in safety circuitry to guard against overcharge, over-discharge, and short circuits.

Measuring 3.26 inches long with a 0.905-inch maximum diameter and weighing approximately 3.0 oz (85g), the SL-B50 installs directly into the battery compartment of compatible Streamlight lights. This listing is for a single 22111 battery pack in black and silver.