Marine Batteries
ENGINEERED FOR THE OPEN WATER

Premium LiFePO4 Lithium Marine Batteries

Built to outlast traditional AGM. Get lightweight, rugged, deep-cycle performance so you can stay out on the water longer with total peace of mind.

Built for the Long Haul

Ditch the cycle of replacing dead lead-acid batteries every few years. Our premium LiFePO4 construction ensures a decade-plus of uncompromising reliability.

Shed the Dead Weight

Free up crucial capacity on your boat. Removing hundreds of pounds of lead translates directly to better handling, faster planing, and increased range.

Charge Fast, Fish Longer

Maximize your time on the water. Expion360 batteries absorb energy far more efficiently than traditional batteries, allowing for ultra-fast top-offs between trips.

The Ultimate LiFePO4 Upgrade for Trolling Motors & House Banks

Ditch the heavy, clunky lead-acid setup. Expion360 premium marine LiFePO4 lithium batteries are built for the long haul, giving you the power to stay on the water longer

Whereas traditional lead acid boat batteries can be heavy and clunky, our lithium marine batteries are 50% lighter, three times more energy dense, and have ten times the life cycle. In addition, 3x faster recovery means you can charge faster, save time, and move further. On the water, that can be the difference between a good day and a bad one. There’s no doubt that these batteries are built for the long haul. 

12V 162Ah GC2 Heated Battery

Reliable Power for High-Demand Marine Applications

Ideal for larger marine vessels, liveaboard boats & off-grid adventures

CAN Bus integration for seamless power system communication

VHC™ internal heating for reliable cold-weather performance

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12V 240Ah EX2 Edge Battery

Expandable Power for House Systems & Electronics

Custom slim design to fit tight marine spaces

Expandable system for increased capacity

VHC™ internal heating for reliable cold-weather performance

Bluetooth SmartTalk™ integration for real-time monitoring

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12V 100Ah & 132Ah Group 27

Perfect for House Power & Auxiliary Loads

Ideal for cabin power, navigation systems & essential electronics

CAN Bus integration for seamless communication with Victron & marine power systems

VHC™ internal heating for reliable cold-weather performance

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12V Group 24 and Group 27 Batteries

Compatible with Series Connections for 36V Trolling Motors

UL1973-certified for marine safety & reliability

Lightweight & long-lasting for high-performance applications

Can be configured in
36V series connection for trolling motor power demands

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Marine LiFePO4 Lithium Battery Chargers & Accessories

Complete Turn-Key Power Solutions

NOCO Chargers

Fast, efficient charging for trolling motor & propulsion batteries

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Battery Monitoring System

Track voltage, capacity & performance with precision

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Custom Marine Mounting Kits

Secure, marine-grade installation options for all battery setups

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Why Boaters Choose Expion360 Lithium?

Built for the Harshest Marine Environments

Pounding waves, heavy vibrations, and corrosive saltwater are no match for Expion360 marine LiFePO4 batteries. We’ve engineered our powerhouses with impact-resistant fiberglass-infused ABS casings, oversized solid mechanical connections, and sealed waterproof components. Whether you're running offshore or navigating choppy lakes, you get rugged durability that won't quit.

More Power, Half the Weight

Upgrading to Expion360 LiFePO4 lithium batteries removes massive amounts of weight from your vessel. By ditching your heavy lead-acid batteries, you'll instantly experience improved fuel economy, tighter handling, and increased top-end speed on the open water.

Uninterrupted Power for Off-Grid Cruising

Whether you're running refrigeration, navigation systems, or autopilot, your house bank needs to perform. Expion360 deep-cycle LiFePO4 lithium batteries deliver up to 10X the cycle life of traditional AGM setups and recharge [3X/5X] faster from your alternator or solar panels. Spend less time running your engine and more time enjoying the voyage.

Eliminate Battery Anxiety with SmartTalk™

Stop guessing how much power you have left. Stay in complete control of your vessel's energy with our built-in Bluetooth monitoring. The e360 SmartTalk™ app (iOS & Android) delivers real-time data on your LiFePO4 lithium battery charge levels, overall health, and temperature right to your smartphone.

Reliable Power for House Banks & Marine Electronics

Whether you are building a robust 48V energy system for your vessel or a reliable 12V house bank for your cabin, our premium LiFePO4 batteries do it all. Run your heavy refrigeration, navigation electronics, live wells, and fish finders with total confidence and consistent, fade-free energy.

Extend Your Season with VHC™ Internal Heating

Don't let freezing temperatures keep you tied to the dock. While standard lithium batteries can't be safely charged in the cold, our exclusive VHC™ (Vertical Heat Conduction) technology automatically warms the battery core. Enjoy safe, optimal LiFePO4 charging and reliable power all year round, even in the harshest winter conditions.

Engineered for Uncompromising Safety

When you are miles offshore, safety isn't optional. Expion360 LiFePO4 lithium batteries are built with premium UL 1642 Recognized cylindrical cells and are UL 1973 Compliant battery packs. Rigorously tested for thermal stability and protection, our batteries deliver the ultimate peace of mind for your onboard energy systems.

Key Features

Lithium Cells

We use only the highest-grade lithium iron phosphate encased in steel and meeting theUL1642 standard(UL file no. MH64383). This material and engineering make for unparalleled reliability, stability, and safety. 

Case Design

We took the standard battery case up a notch with built-in rubber feet, radiused corners, 96.7% larger terminal connection pads, interior molded ribs for structural security, and the highest-grade ABS plastics with additives for fire retardancy. Our innovative case design changes the scope of the industry. 

Cell Pack

To keep our batteries as powerful and efficient as possible, we’ve welded our cells via thick copper/tin machined collector plates, welded all interior pack points, added a press broke flange at each end to create a mechanical backbone for the BMS, used high-grade wiring and ring terminals throughout, and treated connections with industrial epoxy for long-lasting protection. 

Battery Management System (BMS)

Our “smart” BMS design has abundant features to provide you with the safety and performance you desire, such as: low-temp discharge, auto-shutoff, short circuit protection, low and high-voltage shutoffs, and overcurrent disconnect. Our structurally sound BMS board features a bolted design, eliminating all unnecessary solder, resulting in one cohesive pack for years of trouble-free performance.  

Certification

Expion360 lithium batteries are held to the highest safety standards. Because of this, we are one of a small handful of companies to achieve a UL 1973 compliance

Upgrade Your Boat with Expion360 LiFePO4 Lithium Power

Whether you're a weekend boater, professional angler, or full-time liveaboard, Expion360 lithium batteries provide the most reliable, efficient, and lightweight energy storage for all marine applications.

Find Your Marine Power Solution Today!

Available through authorized dealers & online at Expion360.com.