Manual / Timer / Automatic: AutomaticVoltage Settings: 6/126 Volt Charging Amps UL & CSA Rating: 0.3 to 6012 Volt Charging Amps UL & CSA Rating: 0.3 to 606 Volt Engine Starting Amps UL & CSA Rating: 18512 Volt Engine Starting Amps UL & CSA Rating: 250Timer: 2 HR/AutoCables Warranty: 1 YearUnit Warranty: 2 YearsTransformer/Rectifier Warranty: 5 YearsShipping Weight: 55 lbs.