Jump start your battery with the Schumacher SJ1289 1200 Peak Amp 12V Jump Starter and Air Compressor with Portable Power Ports. This unit works with V8 engines, 4-8 cylinders. Features built-in charger with swivel AC plug, (4) USB ports and a 12V DC outlet. This comes with a digital display, reverse hook-up alarm and LED flex light. Inflate your tires with the 100PSI automatic digital air compressor. This unit contains a sealed lead-acid AGM battery and is a 400 Peak Watt converter. Meets the highest industry standards with its Schu Eco Energy. DOE compliant.