Optima is the most advanced engine starting battery available today. The patented SPIRALCELL Technology provides many features and benefits not found in conventional automotive batteries. The Optima's SPIRALCELL Technology provides more power for faster, crisper starts: Features: In performance tests, the Optima lasted two to three times longer than conventional, flat-plate batteries. Electrolyte in the Optima is completely absorbed. It can't leak even if the battery is cracked open. This means that the Optima is safer for people, equipment and the environment. Vibration is a primary killer of conventional batteries. Optima's tightly wound SPIRALCELL resists jarring and vibration, and eliminates plate shedding. The Optima won't corrode battery terminals, cables, or the vehicle. And you never have to add water! Specifications for this model: Size: 10 L x 3.5 W x 7.8 H Minimum Weight: 18.4 lbs Voltage: 6.4V Cold Cranking Amps: 750 Reserve Capacity: 104 Min. Capacity (C/20 Rate): 50 Ah Type Post/Terminal: SAE Click here to find the correct Optima battery for your vehicle. Item is not available for shipment to PO Boxes or outside the continental United States.