Will 18 volt black & decker charger over charge battery
Hello Howard, There are two different kind of cordless drill chargers. One is a smart charger that will not overcharge your battery. It usually has a stand alone base that the battery plugs into and sometimes may have a red and/or a green light to let you know it is charged. This charger will stop charging when the battery is fully charged after an hour or less. The other one is a dumb charger that can overcharge your battery if left on the charger too long. This charger usually has a square or rectangular transformer that plugs directly into your wall receptacle. This charger may take up to eight hours to fully charge your battery and will continue to charge until you unplug it.