The Charging Base for the 3765 Flashlight from Pelican enables you to charge the NiMH battery pack that comes with the 3765 right-angle flashlight. A form-fitted cradle locks the light in place to securely hold it while charging. The design of the flashlight and base allow the battery pack to be charged while in the light, making charging more convenient and removal fast, for use. The charger plugs into any standard 110VAC US wall outlet. A red LED indicator light on the base will be solid red when it is plugged in, blinks when charging and changes to green when the battery is fully charged. It will charge the battery pack in 3.5 hours.