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Schumacher's PSJ-4424 ProSeries Jump Starter/Portable Power Unit has 4400 peak amps, 500 cranking amps and 415 cold cranking amps. This is a power source for all 12 Volt DC accessories that are equipped with a 12 Volt accessory plug. Additional features include: 3 ampere built in automatic charger, reverse hook-up alarm, heavy duty clamp with replaceable copper jaws, 2 gauge 55 inch cables, high impact rubber base and a durable polypropylene vented case for added safety. This Power Unit is great for camping, tailgating, power outages and much more. With this Jump Starter/Portable Power Unit you'll never be stranded or without power again.