From the Manufacturer
55/10/2A Manual, Charges automotive batteries in 3 to 5 hours. Powerful engine start helps start stubborn vehicles. Charges 6 and 12 volt maintenance free, conventional and deep cycle batteries used in cars, trucks, farm equipment, boats, RV and commercial applications. 2 amp setting is ideal for charging 12 volt motorcycle and lawn mower batteries. Large clamps deliver solid connections. 2 year limited warranty.
Product Description
Manual Battery Charger/Engine Start Type: Manual Charger/Engine Starter Amperage Rating: 10/2 Starter Amperage: 55 Voltage: 6/12