WEST MARINE Group 31 Lithium Iron Phosphate Deep Cycle Battery, 36V 60Ah Power systems designed for serious performance. The WEST MARINE Group 31 Lithium Iron Phosphate Deep Cycle Battery in 36V 60Ah is built for boaters and anglers who demand the highest voltage platform for maximum trolling motor efficiency and multi-system capability. At 36 volts, this deep-cycle battery delivers superior power and extended runtime compared to lower-voltage alternatives, making it the choice for dedicated fishermen running professional-grade trolling motors and sophisticated onboard systems that require sustained, reliable energy. Built on chemically stable, resilient LiFePO4 chemistry, the advanced battery management system protects against overcharge and overdischarge while maintaining an IP65 protection rating for unforgiving saltwater and freshwater marine environments. With exceptional high energy density and power output, this Group 31 lithium battery delivers up to 10 times the lifespan of traditional lead-acid alternatives, translating to years of dependable service and dramatic cost savings that serious boaters appreciate. The lightweight design won't compromise your vessel's performance or fuel efficiency the way heavier lead-acid batteries do, keeping your boat responsive and economical whether you're cruising open water or navigating shallow flats. Deep discharge capability means you can safely access the full 60Ah capacity without worrying about cell damage or degradation, giving you genuine reserve power that lasts all day on the water. Stable voltage output keeps your high-performance trolling motor running at peak efficiency, your marine electronics operating reliably, and your audio systems delivering full power throughout every charge cycle. Fast-charging efficiency minimizes downtime between outings, while zero maintenance requirements and eco-friendly LiFePO4 chemistry eliminate the sulfation and corrosive concerns that plague conventional marine batteries. This is a 36-volt deep-cycle power engineered for maximum trolling motor performance: exceptional voltage platform, lightweight efficiency, and the reliability to back it all up. 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.