You'll never have to worry about batteries dying on you again with the Diehard 80/20/10/2 Amp Fully Automatic Battery Charger in your garage. This must-have tool delivers 80 engine-start amps to accommodate emergency starting needs. This Diehard battery charger is microprocessor controlled and comes with 2-amp slow charging and 10 amp and 20 amp fast charging settings. You can power-up and maintain a number of items including small batteries, motorcycles, ATVs, snowmobiles and lawn tractors, even though this device is primarily intended for cars, trucks, marine, RV and farm equipment. Other features of the 2 amp battery charger with emergency engine start include float-mode monitoring, a battery and alternator tester, easy-to-use touch pad controls and a digital display and status indicator. The reverse hook-up protection feature shields the device from damage caused by an improper charging connection.