Schumacher SE-8050 Heavy Duty Charger 30/60 Amp, 6/12 Volt, Load Tester, Input Voltage: 120V AC, Battery Compatibility: 6/12 Volt Batteries, Manual operation for different amperage settings, Dimensions: Approximately 12" x 10" x 23", Weight: Approximately 28 lbs, Built-in ammeter, Made in U.S.A.