Expion360

Expion360 12.8V 368Ah Extreme-Density LiFePO4 Deep Cycle Battery

Regular price $3,184.95 USD

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$3,184.95 USD
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Expion360 12.8V 368Ah Extreme-Density LiFePO4 Deep Cycle Battery


Description

The Expion360 12.8V 368Ah LiFePO4 Deep Cycle Battery is built for RV owners, overlanders, and off-grid enthusiasts who refuse to compromise on power. With a massive 368 amp hours of capacity and 4,710 Wh of stored energy, this lithium iron phosphate battery delivers the kind of performance that keeps your appliances running, your devices charged, and your adventures uninterrupted. Its high energy density and 180A continuous discharge current make it a serious upgrade over traditional lead-acid setups.

Engineered for reliability, this battery includes a fully integrated Battery Management System (BMS) that handles short circuit protection, overvoltage and undervoltage protection, overcurrent protection, thermal protection, and cell balancing - all automatically. Housed in an IP55-rated ABS plastic enclosure, it's built to withstand real-world conditions and is designed for boondocking, full-time RV living, or any setup that demands dependable deep cycle power.


Key Features

  • LiFePO4 Chemistry: Lithium iron phosphate cylindrical cells deliver stable, safe, and long-lasting power - superior to traditional lead-acid or standard lithium batteries.
  • 368 Ah / 4,710 Wh Capacity: Massive energy reserve ideal for running appliances, electronics, and 12V accessories during extended off-grid stays.
  • 12.8V Nominal Voltage: Designed as a direct drop-in replacement for standard 12V deep cycle battery applications in RVs and campers.
  • Over 4,000 Cycle Life: Rated for more than 4,000 cycles at 0.5C and 100% depth of discharge - years of dependable, maintenance-free service.
  • Integrated BMS: Built-in Battery Management System provides short circuit, overvoltage, undervoltage, overcurrent, and thermal protection, plus automatic cell balancing.
  • Fast Charging: Accepts up to 180A max charge current with a recommended charge voltage of 14.6 Vdc for quick turnaround between adventures.
  • IP55 Weather-Resistant Housing: Durable ABS plastic enclosure rated IP55 for protection against dust and water spray in demanding environments.
  • Expandable System: Can be wired in series or parallel to create higher amp hours or voltage configurations (follow manual wiring diagrams). Compatible with EX-360-TDS and EX-BM350-KT accessories.
  • Dimensions & Weight: 14.8" x 13" x 10.4" and approximately 100 lbs - compact and dense for its capacity class.
  • 12-Year Manufacturer Warranty: Backed by Expion360's industry-leading 12-year warranty for long-term peace of mind.

Shipping

Ships free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.

Important: Due to shipping regulations governing hazardous materials, lithium batteries cannot be returned or refunded after purchase. Please confirm compatibility before ordering.


What's Included

  • Expion360 12.8V 368Ah LiFePO4 Deep Cycle Battery (EX-360XDP-C)

Why You'll Love It

The Expion360 368Ah battery is trusted by serious RVers and off-grid enthusiasts who need power they can count on, night after night. Its LiFePO4 chemistry is widely regarded as the safest and most stable lithium battery chemistry available, meaning you get the benefits of lithium without the risks associated with other chemistries. With over 4,000 rated cycles and a 12-year manufacturer warranty, this is an investment in years of worry-free adventures - not a battery you'll be replacing every few seasons. The integrated BMS takes the guesswork out of battery management, protecting your investment automatically while you focus on enjoying the trip. Whether you're boondocking in the desert, living full-time in your RV, or just want the confidence of a premium power system, the Expion360 delivers the energy density and reliability that makes every mile better.


Product Specifications

View Product Specs
Nominal Voltage 12.8 Vdc
Rated Capacity 368 Ah
Energy 4,710 Wh
Internal Resistance 3 mOhm or less
Efficiency Greater than 99%
Cycle Life More than 4,000 cycles at 0.5C, 100% DoD
Cell Self-Discharge Less than 2% per month
Cell Configuration 4S/92P
Cell Type Cylindrical LiFePO4
Continuous Discharge Current 180A
Max Discharge Current 250A
Pulse Discharge Current 300A (2s), 1000A (100ms)
Recommended Disconnect Voltage 10.5 Vdc
BMS Discharge Cut-Off Voltage 8.8 Vdc
Short Circuit Protection 200us to 600us
Charge Method CC-CV
Recommended Charge Voltage 14.6 Vdc
Recommended Float Voltage 13.6 Vdc
Recommended Charge Current 120A
Max Charge Current 180A
BMS Charge Cut-Off Voltage 14.6 Vdc
Discharge Temperature -4F to 140F (-20C to 60C)
Charge Temperature 32F to 122F (0C to 50C)
Storage Temperature 32F to 95F (0C to 35C)
Dimensions 14.8" x 13" x 10.4"
Weight Approximately 100 lbs
Terminal Thread M8 x 1.25
Housing Material ABS Plastic
Housing Protection Rating IP55
Compatible Accessories EX-360-TDS, EX-BM350-KT
Warranty 12-Year Manufacturer Warranty
Assembly Required No - ready to connect; see manual for wiring diagrams if configuring a battery bank
Shipping Method Ground freight; ships as a heavy parcel (approx. 100 lbs)

FAQ

Can I use this battery to replace my existing lead-acid batteries?

Yes, the Expion360 368Ah LiFePO4 battery is designed as a drop-in upgrade from lead-acid deep cycle batteries in most 12V RV and off-grid applications. However, you should verify that your charging system (converter, solar charge controller, etc.) is compatible with lithium battery charge profiles - specifically a charge voltage of 14.6 Vdc. Some older RV converters may need to be updated or adjusted for optimal lithium charging.

Can I connect multiple batteries together to increase my capacity?

Yes - this battery can be wired in series to increase voltage or in parallel to increase amp hour capacity. Expion360 recommends not exceeding four batteries in a bank and advises against mixing batteries of different ages or sizes. Always follow the wiring diagrams provided in the user manual for proper and safe configuration.

What BMS protections does this battery have?

The integrated Battery Management System (BMS) provides six key protections: short circuit protection, overvoltage protection, undervoltage protection, overcurrent protection, thermal protection, and automatic cell balancing. These features work automatically in the background to protect your battery and extend its usable life.

Can this battery be used as a starter battery?

No - this battery is not rated or designed for use as a starter/cranking battery. It is a deep cycle battery intended for sustained power delivery in applications like RVs, off-grid energy storage, and marine house banks. Using it as a starter battery is not recommended by Expion360.

What is the warranty, and are returns accepted?

This battery is backed by a 12-year manufacturer warranty from Expion360 - one of the best in the industry. Please read the full user manual for complete warranty terms and conditions. Important: Due to shipping regulations for lithium batteries (classified as hazardous materials), returns and refunds cannot be accepted after purchase. Please confirm compatibility before ordering.

How long will this battery last on a single charge?

Runtime depends heavily on your power draw. At 368 Ah and 4,710 Wh of stored energy, this battery can run a wide range of loads for extended periods. For example, a 100W device would theoretically run for approximately 47 hours. In real-world RV use, factors like inverter efficiency, simultaneous loads, and temperature will affect actual runtime. The battery is rated for over 4,000 full charge/discharge cycles, giving it a very long usable lifespan.

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