Product details:

3-position charger rate selector switch: Trickle charge for motorcycles, snowmobiles, all-terrain vehicles, lawn and garden tractors and most other small engine charging applications 10-Amp continuous charge for automobiles, trucks, tractors, and vans5 Charges maintenance-free, deep cycle, low maintenance and conventional type 12-Volt batteries Solid state silicon diodes for peak performance output Deep louvered all-steel case with baked enamel finish, insures excellent ventilation for long life component performance Heavy-duty copper wound, steel laminated transformer is energy efficient to insure max performance and component life Flush ammeter.