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Heavier Load Capicity: Up to 1600 starting amps/400 continuous amps
Motor cover for added strengh & durability
Top post contact material raised/increased to improve GM connections
Heavier ground wire connector thicker/stronger for heavier duty vehicles
Gear cover for added strength & durability
The 12V ProMax H.D. from PriorityStart! is the only automatic computerized on/off protection system for your battery, alternator, and electrical system on the market today. It recognizes when your battery's voltage drops to 11.7 volts, and then disconnects so that the battery's voltage can recover. The 12V ProMax H.D. offers heavier load capacity (up to 1,600 starting amps/400 continuous amps) for the effectiveness you want.