The BC-10b microprocessor controlled battery charger is designed to simultaneously charge up to 10 Gentner assistive listening receivers using 2AA nickel-cadmium (NiCad) or nickel-metal-hydride (NiMH) batteries. The battery charger uses an efficient microprocessor that provides overcharge protection and smart charging to extend the life of the battery. Fully depleted batteries will be charged in 6-7 hours while LED indicators takes the guesswork out of battery status: Red LED's indicate the batteries are charging, green LED's indicate the batteries are charged. The BC-10b battery charger is the perfect addition to Gentner Assistive Listening Systems for those who want to eliminate the burden of constantly replacing alkaline batteries, extend the life of NiCad or NiMH batteries, and maintain a system that is always ready for use.