Group 8D Lithium Iron Phosphate Dual Purpose Battery, 12V 350Ah, ABYC Certified

WEST MARINE Group 8D Lithium Iron Phosphate Dual Purpose Battery, 12V 350Ah, ABYC Certified

The complete power solution for serious marine applications. The WEST MARINE Group 8D Lithium Iron Phosphate Dual Purpose Battery in 12V 350Ah delivers everything you need in a single, versatile battery: engine cranking power when you need it and exceptional reserve capacity for extended house loads, trolling motors, and onboard systems that define modern boating. With 1300A of marine cranking amps and 350Ah of reliable LiFePO4 chemistry, this dual-purpose battery eliminates the complexity and weight penalty of managing separate starting and house batteries, giving you one powerful solution that handles it all.

Built on chemically stable, resilient LiFePO4 technology, the advanced battery management system protects against overcharge and over-discharge while maintaining an IP65 rating for demanding saltwater and freshwater marine environments. With exceptional high energy density and power output, this Group 8D lithium battery delivers up to 10 times the lifespan of traditional lead-acid alternatives, translating to years of dependable service and substantial cost savings that serious boaters appreciate. The lightweight design won't burden your vessel's weight distribution or compromise fuel efficiency the way heavier lead-acid batteries do, keeping your boat responsive and economical whether you're cruising long distances or anchored for extended periods.

Deep-discharge capability means you can safely access the full 350Ah capacity without worrying about cell damage or degradation, giving you reliable reserve power for everything from engine starting to running trolling motors and marine electronics all day long. Stable voltage output keeps your engine starting reliably, your trolling motor running at peak efficiency, your navigation systems operating consistently, and your accessories delivering full power throughout every charge cycle.

Fast-charging efficiency minimizes downtime between trips, while zero maintenance requirements and eco-friendly LiFePO4 chemistry eliminate the sulfation and corrosion that plague conventional marine batteries. This is dual-purpose power engineered for maximum capability: serious cranking power, exceptional house load capacity, lightweight efficiency, and the reliability to handle any boating scenario you encounter.

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.

Key Features

• Engine cranking power with 1300A marine cranking amps, plus exceptional reserve capacity for trolling motors and house loads
• Lightweight and high energy density design increases vessel efficiency without compromising power delivery or capacity
• Longer lifespan with up to 10X battery life compared to standard lead-acid technology, delivering years of reliable service
• Enhanced safety through an intelligent protection system that eliminates overcharge and over-discharge damage
• Deep discharge capability allows you to safely use the full 350Ah capacity without cell degradation or premature failure
• Stable voltage output maintains consistent 12V power throughout discharge cycles for reliable engine starting and accessory performance
• Fast-charging efficiency minimizes downtime between fishing trips and water activities
• Eco-friendly LiFePO4 chemistry requires zero maintenance and eliminates corrosive sulfation concerns
• IP65 protection rating handles demanding saltwater and freshwater marine environments with superior corrosion resistance
• Dual-purpose design eliminates the need for separate starting and house batteries, simplifying system architecture
• Perfect for engine starting, extended trolling motor runtime, high-power audio systems, marine electronics, and multi-accessory power applications
• 5-year replacement warranty provides long-term protection and confidence in your investment
• ABYC - Certified

What's Included

• Battery
• Instruction manual
• M8*12 & M8*16 bolts

This product can expose you to chemicals, including Nickel (metallic), which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov