Deka Outdoorsman Lawn & Garden 300CCA Battery. Delivers plenty of cranking amps to power tractors and small-engine recreational vehicles across the roughest terrain. Electrical short prevention system protects power-producing components from life-robbing electrical shorts. Vibration-resistant design with reinforced posts, straps, and welds withstand demanding conditions. Power-Perform™, full-framed plates better withstand severe service demands while optimizing current transfer. Tough polypropylene case and cover resist external damage from tough outdoor use. Side, safety vent system prevents acid leaks up to a 45 degree tilt, keeping battery dry and corrosion-free.