The ODYSSEY Performance Group Size 34 Heavy Duty Truck Battery keeps you Ready for the Road Ahead™, with a thin flat plate design made from 99% pure lead that permits more plates to be used inside the battery. As a result, you get even more power when you need it. With this heavy duty truck battery, experience a smooth start while simultaneously and consistently providing power to an expansive amount of on-board accessories. The ODYSSEY Performance battery features compressed AGM plate separators, providing improved vibration resistance and thus, optimal battery life you can count on. FleetPride is your First Click in Heavy Duty®.