This 2/6 Amp 12V Battery Charger charges marine and automotive 12-volt batteries at both 2 and 6 amp rates. It features a built in self-resetting circuit breaker to protect against short circuits and heavy-duty cables and clamps that are made corrosion resistant for safety and reliability. Housed in a rugged steel case with baked-on finish and an attached sturdy handle, this charger can connect to side or top-mount battery terminals and automatically checks for correct polarity.