When seeking a durable battery to power your boat, look no further than Sears's selection of marine batteries. Brands include trustworthy options such as Diehard and Optima, and batteries vary by power level and length of battery life. Some, such as Diehard's Platinum Marine Battery, include a 3-year limited-replacement warranty and long off-season storage life. Marine batteries are safely designed to prevent the leaking of dangerous acid. Most are also perfect for powering RVs or other recreational equipment. Don't forget to pick up other battery and marine accessories at Sears, such as battery storage cases, dock ladders and lights.