Dead batteries don't wait for a convenient time. The Schumacher Electric SC1340L makes sure you're always ready for them. This fully automatic 3-in-1 device starts engines, charges batteries, and maintains them over time—delivering 55A engine start power, a 10A boost charge for deeply discharged batteries, and 2A to 6A charge and maintain rates that keep your battery at peak health. Compatible with standard, AGM, gel, and 12V lithium (LiFePO4) batteries across gas and diesel vehicles—motorcycles, ATVs, cars, trucks, SUVs, and marine applications—the SC1340L handles virtually every battery in your garage. Backed by over 75 years of Schumacher ingenuity, it’s built to keep you on the road.