The one that started it all, Booster PAC was the world's first portable jump starter and is still the best! Featuring high perfromance ES Series batteries and rugged duability in even the harshest environments, shops and technicians alike know they can count on Booster PAC. Founded in 2001, but with an over 50 year heritage, Clore Automotive is a leader in the design, development and manufacture of automotive service equipment for professionals and consumers.