The SL-B26 (18650) Charger Kit is a game changer for devoted Streamlight enthusiasts. This charging cradle is capable of charging a single SL-B26 (18650) button-top lithium ion battery or two simultaneously, up to 500 times. The kit has a sturdy, impact-resistant polymer construction and was created for Streamlight products that accept SL-B26 (18650) cells. Charge up your batteries - one or two at a time - in the clever dual input cradle. This essential kit includes the charging cradle, two SL-B26 (18650) lithium ion batteries and a Streamlight USB cord adapter to restore energy. Streamlight is best known for high quality and reliable lights, and the SL-B26 (18650) Charger Kit will keep these essential tools in working order.