Ideal for 8-cylinder cars, the SL1327 provides a quick jump start when you need it. From Schumacher's Lithium Jump Starters line, this unit offers 800 peak amps of power in a compact case. Plus, it has a USB port for fast charging all USB devices. With pre-boost technology, the unit works in the cold for ultimate cold temperature starting. It's also safe and easy, providing spark-free protection against short-circuiting, overcurrent, and more. The product comes with a 1-year limited warranty.