Enhanced electrolyte suspension system. Special glass mats absorb more electrolyte. Premium maintenance-free starting and cycle service power. Vibration protection safeguards battery performance over time. Fast recharging powers more electronics longer. Spillproof design. Designed to hand factory installed electronics to anything that plugs in or turns on, and still deliver. 2x the endurance in severe service, as well as 2x the cycle life. Equipped for the toughest conditions and the most intense electrical power demands. Ideal for tuner cars or off-road vehicles, offering superior power for high-performance equipment and a high-impact design for rugged, back road adventures. Fits vehicles with a battery group size of 34R. Battery primarily fits Ford, Mercury and Toyota full size vehicles, SUV's, trucks and vans.