WEST MARINE Group 27 Lithium Iron Phosphate Dual Purpose Battery, 12V 80Ah Power your boat with a single battery that does it all. The WEST MARINE Group 27 Lithium Iron Phosphate Dual Purpose Battery delivers engine cranking power plus dependable reserve capacity for everything from trolling motors to marine electronics and high-power audio systems. With 800A of marine cranking amps and 12V 80Ah of reliable energy, this battery handles both starting demands and continuous onboard loads, no separate batteries needed, no complexity of managing multiple power sources. Built on stable LiFePO4 chemistry, the advanced Battery Management System protects against overcharge and overdischarge, while the IP65 rating ensures reliable performance in wet, demanding marine environments. You get consistent voltage output and the kind of dependable power that serious boaters rely on. This battery lasts up to 10 times longer than traditional lead-acid batteries, translating to fewer replacements, less maintenance, and real savings over time. Zero corrosive sulfation. Zero watering. Zero hassle. The lightweight design won't throw off your vessel's balance, and fast-charging efficiency means less time waiting and more time on the water. Whether you're firing up your engine or running accessories for hours, this Group 27 lithium battery delivers, start to finish. One battery. Maximum reliability. Complete confidence. This battery is ABYC certified, giving boat owners and marine professionals confidence that it meets established safety standards for use in recreational boats and marine electrical systems. What is ABYC? The American Boat & Yacht Council (ABYC) is a non-profit, member organization that develops voluntary global safety standards for the design, construction, maintenance, and repair of recreational boats. ABYC also provides standards-based technical education and training to help marine professionals build skills, stay current, and advance safety across the boating industry.