BLACK+DECKER™ battery chargers and portable power inverters are designed to keep your car and your 120-watt devices fully charged. Our 15-Amp automatic battery charger features reverse polarity protection and patented alternator check.  Our sealed 6 amp waterproof battery charger resists moisture, dust, and oil. Plug in a 120-watt device just as you would at home with our power inverter. It features one AC port and one USB port and automatically protects against vehicle battery drain.