Spend More Time On The Water.

with Expion360 Lithium Batteries

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Expion360 Premium Lithium Marine Batteries.

Our Premium lithium marine batteries are created with the highest quality materials. Built for the long haul, these batteries will provide you with countless hours of enjoyment on the water. Lithium batteries maintain their charge longer giving you dependable power delivery no matter the weather condition.

Boat powered by Expion360 lithium batteries floating on crystal blue water.
Men on a boat enjoying all-day power from Expion360 lithium batteries.
Man sitting on a boat powered by Expion360 lithium batteries enjoying the sunset.
Dependable Expion360 lithium power for all-day fun on your boat.

LiFePO4 Technology

The gold standard in lithium chemistry, LiFePO4 ensures peak performance.

12 Year Warranty

Industry leading warranty keeps you covered for the long run.

American Power

Designed, engineered and distributed in the USA.

Why Expion360 Lithium?

Created for optimal performance and to withstand the toughest environments Expion360 batteries are world class. Where others use foam, thin plastic and hot glue, we use structural no-shift construction, reinforced premium ABS and solid mechanical connections with minimal soldering.

Expion360 lithium battery key features
  1. Cold Weather Disconnect with Auto Reset
  2. Offset Terminal Design, Reduced Chance of Cross Polarity
  3. Advanced Tie Downs with No Slip Snap & Screw Technology
  4. Utility Grade Case Made with Premium Fiberglass Reinforced ABS
  5. Impact Resistant Corners and Shock Absorbing Rubber Feet
  6. Premium Internal Components with Minimal Solder Joints and Thick Copper Plates
  7. Only Grade A UL Listed Cells That Meet Strict Voltage Guidelines

6x Life Cycle

Six fold the lifetime of your battery investment.

6x Discharge Power

Power bigger appliances and more of them.

3x Faster Recovery

Charge faster, save time and move further.

65% Lighter

Lighten your load to improve handling and mpg.

* comparisons are to traditional lead acid batteries

Lithium Power for Adventurers

Choose from a wide array of options guaranteed to power your next adventure.

Expion360 marine VPR classic group 24 lithium battery.
  • VPR 4EVER Classic Group 24
  • 60Ah, 80Ah, 95Ah
  • Cold Weather Disconnect with Auto Reset
  • Premium Construction
  • 17.4 lbs
  • 10.24" X 6.81" X 8.82"

Starting at

$699

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Expion360 marine VPR classic group 27 lithium battery.
  • VPR 4EVER Classic Group 27
  • 100Ah, 120Ah
  • Cold Weather Disconnect with Auto Reset
  • Premium Construction
  • 29.8 lbs
  • 11.93" X 6.81" X 8.82"

Starting at

$899

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Expion360 marine VPR platinum custom 360 lithium battery.
  • VPR 4EVER Platinum Custom 360
  • 360Ah
  • Cold Weather Disconnect with Auto Reset
  • Premium Construction
  • 98 lbs
  • 14.8" X 13" X 10.4"

Starting at

$3,999

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What Makes Expion360 the Best Choice in Lithium Batteries?

Designed and Engineered in America — We design and oversee all aspects of our lithium batteries with special attention to the smallest of details. Expion360 is the right choice where quality meets price.

Lithium Cells — We source only the highest-grade lithium cells in the world for unparalleled reliability. All lithium cells used in production are fully listed and meet UL1642 standard (UL File #MH64383).

Box Design — From concept to commodity, our usage of color and texture are a hallmark of our innovative box design that completely changes the scope of the industry. The X, Y & Z axis within the interior space are structurally secured with molded ribs rather than foam filler that is found in most of our competitors. We only use the highest-grade ABS plastics and infuse 10% glass fill into our mil-spec battery case that meet UL-94 VO for fire retardant rating. First in the industry to have rubber feet built-in on every battery box, this feature aides in the elimination of vibration and sliding issues. Radiused corners heighten the appearance and strengthen the edges for a sleek and sophisticated profile. Polarity Pads — Our oversized polarity pads are 96.7% larger than a standard terminal. This forward-thinking design increases the strength and structural integrity by allowing better heat dissipation and a 19% increase in current carrying capacity. Opposing polarity pads aid in mounting flexibility and reduced cross polarity dangers.

Cell Pack — We have eliminated nearly all solder points within our interior pack design. Because mechanical connections are the most efficient way to transfer power and reduce resistance and heat buildup, all cells are securely welded via thick copper/tin machined collector plates. The collector plates in our design are thicker than the industry norm and press broke at each end to create a mechanical backbone to connect to the BMS substrate. High-grade wire, ring terminals, and heat shrink are generously used throughout the interior. All terminal connections are treated with an industrial epoxy for long-lasting corrosion protection and locked-in durability.

BMS (Battery Management System) — “Smart” is at the heart of our BMS design with an abundance of features. For the cold weather enthusiast, we have built in a low-temp discharge and charge auto-shutoff. Low and high voltage cutouts, short circuit protection, and overcurrent disconnect are also managed by our intelligent BMS. While others may overlook the safety importance of structurally securing the BMS board, our process incorporates a bolted design that creates one cohesive pack. The addition of terminal connections and an oversized heatsink increase the reliability of our BMS to give years of trouble-free performance.

Customer Service — Top tier support is what you can expect. Our live US based industry experts are available M-F 8-5 PST. Our associates are trained in lithium technology and the integration required to make a system operate at peak performance.

Warranty — We are so confident with our designs and construction techniques that we have backed our batteries with an industry-leading, 12-year warranty!