12 Volt - 8 AMP and 24 Volt - 4 AMP - CEC Smart Battery Charger meets the new California CEC regulations, 5 stage 12 or 24 Volt Smart Charger, digital led meter will display voltage, battery's charge percentage and amperage. Reverse polarity protection with automatic switching technology will not overcharge the battery and includes alligator clips. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.