12-Volt Dual-Purpose Lithium Marine Battery

12-Volt Dual-Purpose Lithium Marine Battery

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Powering Your Water Adventures 

When you're miles from shore, the last thing you want to worry about is whether your battery can keep up. At Abyss Battery®, we build 12V marine battery solutions that start your engine, run your electronics, and keep going long after conventional batteries quit. Whether you're chasing fish at dawn or spending the weekend off the grid, our lithium marine batteries deliver the power you need without the weight, hassle, or guesswork.

Built to Handle Real Marine Conditions

Saltwater, vibration, pounding waves; the water is a tough place to keep electronics running. That's exactly what our 12 volt deep cycle lithium battery is engineered to handle. We use premium lithium iron phosphate (LiFePO4) chemistry because it's stable, safe, and made to last through years of hard use.

Here's what sets an ABYSS 12v lithium ion deep cycle battery apart:

  • Rock-solid internal structure: Internal cell holders keep every cell locked in place, protecting against short circuits caused by impact and rough water.

  • Cylindrical LiFePO4 cells: These cells won't swell or degrade the way pouch cells can, so your battery stays dependable season after season.

  • Vibration-resistant BMS: Our Battery Management System is bolted securely to the internal frame, so it holds up when the seas get rough.

  • Offshore-ready design: Built to withstand the demands of serious marine environments, not just calm-water cruising.

One Battery for Starting and Deep Cycle

A lot of boaters end up hauling two batteries; one to crank the engine and another to run everything else. Our 12 volt lithium deep cycle battery does both jobs. You get the high burst of power needed to start your outboard, plus the steady, long-lasting output required for a 12v deep cycle marine setup.

That makes it a smart fit for boats running heavy-load electronics without the bulk of a generator, including:

  • SEAKEEPER stabilizer systems

  • Marine chill plate refrigeration

  • 360˚ OMNI sonar and other high-draw electronics

Every ABYSS 12-volt marine battery is approved for and exceeds the specifications of Mercury Marine, Yamaha, Suzuki Marine, and Honda Marine outboard engines.

Smarter Power, Right on Your Phone

Guessing about your battery's charge is a thing of the past. Select ABYSS batteries include built-in Bluetooth, so you can check your battery's real-time performance, monitor charge levels, and pull the latest software updates through an easy-to-use app on your smartphone. It's peace of mind you can check with a quick glance.

Power That Lasts for Years

A quality 12-volt lithium battery deep cycle setup should be an investment, not a recurring purchase. Each ABYSS battery is built for the long haul, with a lifespan of up to 10 years or 5,000+ cycles depending on how you use and maintain it. That means fewer replacements, less downtime, and more time doing what you actually got the boat for.

Choose ABYSS and Go Farther

Stop juggling multiple batteries or worrying about running out of power at the worst possible moment. With an ABYSS 12v marine battery, you get lightweight, reliable energy for both starting and deep-cycle needs in one dependable package. Find us at your nearest West Marine or authorized dealer, or reach out to our team to find the right battery for your setup.

Help

Frequently Asked Questions

At ABYSS,we are dedicated to enhancing your marine adventures with our state-of-the-art 12Vlithium marine batteries. We designed ourbatteries to seamlessly integrate with your existing AGM battery charging system. With a precise voltage requirement of 14.4V-14.6V, transitioning to lithium power has never been easier or more convenient. We also have our own selection of12V onboard marine chargersto meet your needs.

Absolutely. ABYSS 12VLithium Marine Batteries feature an internal heating film that allows them to function seamlessly in freezing temperatures. The heating process is fully automatic and energy-efficient, ensuring your battery stays operational regardless of the weather.

Think of amp hours (Ah) as the capacity of your boat's fuel tank but for electrical energy. Higher amp hours mean your boat can run longer on a single charge, ensuring extended enjoyment and reliability on the water. More amp hours = More run time!

Yes! All ABYSS12V Lithium Marine Batteries provide an impressive 1500 Cold Cranking Amps (CCA) and are specifically designed to exceed Mercury Marine’s lithium battery specifications for starting outboard motors. They deliver reliable power for even the most demanding marine engines.

Yes! ABYSS 12V batteries are designed to be drop-in replacements for most standard marine batteries. They are lightweight, compact, and compatible with common charging systems, making the upgrade to lithium simple and seamless.

Choosing the right battery involves considering your boat’s weight, size, and specific power needs. Each vessel is unique, requiring a tailored approach to find the perfect power solution.

Our range of 12V dual-purpose lithium marine batteries are crafted for both high-demand starting and deep-cycle applications, providing versatile power for devices on boats of all sizes, especially those without generators like center consoles.

Yes, our 12V Dual Purpose Lithium Battery is designed to be compatible with most boat motors' alternators. Using your motor’s alternator to charge the battery provides a convenient, on-the-go charging solution, ensuring reliable power while you're out on the water. To maximize battery life, we recommend verifying that your alternator's voltage output aligns with the battery’s specifications. If you have any questions about compatibility, feel free to reach out to our support team!

Customer Reviews

Let customers speak for us

Incredible power!!! 24v is actually 24volts! Run it all day no worries!! A must for charter captains and tournament fishing!! Thumbs up!! 10 star!! Prompt professional service!!!
The battries are first class along with customer suport.If you are using acid core or adm, Lithium is the way to go.My only complaint is for a first time user, I had to call customer support because of the limited owner info sent with the batteries.

Howard Helmick

09/21/2023

ABYSS® 12V 120Ah Dual Purpose Li...

Ryan and Abyss are top notch. Super knowledgeable, super accommodating. And their products are second to none. Best charger options in the LiFePo4 marketplace, and it's not even close. And the batteries are LEGIT. I wouldn't waste any time looking anywhere else for lithiums and/or chargers

Howard Helmick

09/16/2023

ABYSS® 3 Bank 12V/36V On-Board M...

Ordered and delivered to my house in less than 12 hours! Great company, great customer service! No more brown power, full thrust for days! Removing 3 agm batteries from my console was a plus too.

Thomas Scoggins

09/14/2023

ABYSS® 36V 75Ah Lithium Trolling...

Super small for a 36V battery. Group 31 size. The Bluetooth app rocks. Very happy with this purchase.