Schumacher SS-210A 12/24 Volt Microprocessor Controlled Automatic Charger Charges both 12 and 24-volt battery systems Includes both dual 10-amp and single 20-amp chargers It is a typical N-shore dual bank onboard marine battery charger Provides true amp charging 10-amps charge a single 12-volt battery or two 12-volt batteries This product cannot be shipped to Oregon or California