The Streamlight SL-B26 Charger Kit provides fast versatile charging for 18650 lithium ion rechargeable batteries used in Streamlight flashlights. This two-bay charger can recharge one battery in as little as 3.5 hours or two batteries in 6.5 hours.Streamlight SL-B26 Charger Kit with 18650 lithium ion batteriesDual input power sources: 5V USB and 12VDC for maximum flexibilityFast charging: 3.5 hours for single battery 6.5 hours for dual batteriesBattery charge status indicators for monitoring progressSafety circuit protects against overcharge and over dischargeBuilt-in PTC surge protector for enhanced safetyCompatible with Streamlight flashlights that operate on CR123 batteriesAn economical alternative to disposable batteries this charging kit offers versatile power options including PC power pack or automotive 12VDC when wall outlets aren't available. Perfect for professionals and enthusiasts who rely on consistent flashlight performance.