About Peak Auto Peak Performance, by Old World Industries, is dedicated to providing affordable and quality products to make your driving life easier. From mobile power to auto-shop necessities, you"ll get useful and novel solutions from Peak. * Rugged steel case with a sturdy handle * 70-amp 12V vehicle jump-start capability * Corrosion-resistant cables and steel nickel-plated clamps * Automatically stops charging when battery is fully charged * Built-in circuit protection guards against short circuit * Heavy-duty transformer and rectifier for dependability