Expion360

Expion360 12.8V 368Ah LiFePO4 Deep Cycle Battery with Bluetooth

Regular price $3,499.95 USD

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Expion360 12.8V 368Ah LiFePO4 Deep Cycle Battery - hero right angle view with no cap
$3,499.95 USD
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Expion360 12.8V 368Ah LiFePO4 Deep Cycle Battery with Bluetooth


Description

The Expion360 12.8V 368Ah LiFePO4 deep cycle battery is engineered for RV enthusiasts, boondockers, and off-grid adventurers who demand reliable, long-lasting power far from the grid. With a massive 368 amp hour capacity and 4,710 Wh of stored energy, this lithium iron phosphate battery keeps your appliances running, devices charged, and setup powered through extended stays. The integrated Battery Management System (BMS) delivers comprehensive protection - short circuit, overvoltage, undervoltage, overcurrent, and thermal protection are all built in, along with automatic cell balancing for consistent performance. Housed in a rugged IP55-rated ABS plastic enclosure, this battery is built to withstand real-world conditions while remaining maintenance free. A 12-year manufacturer warranty backs the investment, and the battery is rated for over 4,000 charge cycles - giving you years of dependable, worry-free power.

Whether you're running a solo rig or building a full battery bank, the Expion360 368Ah supports series and parallel wiring configurations for flexible, scalable energy storage. Fast charging capability and a continuous discharge current of 180A mean this battery can keep up with demanding loads without breaking a sweat.


Key Features

  • 368Ah / 4,710Wh Capacity: Massive energy storage for extended off-grid and boondocking use - keeps appliances and devices powered for longer.
  • LiFePO4 Chemistry (Cylindrical Cells): Lithium iron phosphate chemistry delivers superior safety, thermal stability, and longevity compared to traditional lithium-ion and lead-acid batteries.
  • 4,000+ Cycle Life: Rated for over 4,000 cycles at 0.5C with 100% depth of discharge - dramatically outlasting lead-acid alternatives.
  • Integrated BMS Protection: Built-in battery management system provides short circuit, overvoltage, undervoltage, overcurrent, and thermal protection plus automatic cell balancing.
  • 180A Continuous / 250A Max Discharge: High discharge current rating supports heavy loads and demanding electrical setups with ease.
  • Fast Charging: Recommended charge current of 120A (max 180A) gets you back to full power quickly between adventures.
  • IP55 Rated ABS Housing: Durable, weather-resistant enclosure protects cells from dust and water spray in tough environments.
  • Series & Parallel Compatible: Can be wired in series or parallel to expand capacity, voltage, or both - compatible with EX-360-TDS and EX-BM350-KT accessories.
  • Maintenance Free: No watering, equalization charges, or upkeep required - just install and run.
  • 12-Year Manufacturer Warranty: Industry-leading warranty coverage gives you long-term confidence in your investment.
  • Dimensions & Weight: 14.8" x 13" x 10.4" and approximately 100 lbs - compact footprint for the energy capacity delivered.

Shipping

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


What's Included

  • Expion360 12.8V 368Ah LiFePO4 Battery (EX1 model)

Why You'll Love It

The Expion360 368Ah LiFePO4 battery is trusted by serious RV travelers and off-grid enthusiasts who refuse to compromise on power reliability. With over 4,000 rated cycles and a 12-year warranty, this is a battery built for the long haul - not a budget option you'll be replacing in a few seasons. The advanced BMS works silently in the background to protect your investment and keep every cell balanced and performing at its peak. The IP55-rated housing and maintenance-free design mean you can install it and focus on your adventure rather than your electrical system. Scalable wiring options make it equally at home in a single-battery setup or as part of a larger bank for full-time RVers and serious off-gridders. If you want a premium, high-capacity lithium battery that delivers year after year, this Expion360 is the one to get.


Product Specifications

View Product Specs
Nominal Voltage 12.8 Vdc
Rated Capacity 368 Ah
Energy 4,710 Wh
Internal Resistance 3 mΩ or less
Efficiency Greater than 99%
Cycle Life Over 4,000 cycles at 0.5C, 100% DoD
Cell Self-Discharge Less than 2% per month
Cell Configuration 4S/92P
Continuous Discharge Current 180A
Max Discharge Current 250A
Pulse Discharge Current 300A (2s) / 1,000A (100ms)
Recommended Disconnect Voltage 10.5 Vdc
BMS Discharge Cut-Off Voltage 8.8 Vdc
Short Circuit Protection 200μs to 600μs
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 -4°F to 140°F (-20°C to 60°C)
Charge Temperature 32°F to 122°F (0°C to 50°C)
Storage Temperature 32°F to 95°F (0°C to 35°C)
Dimensions 14.8" x 13" x 10.4"
Weight ~100 lbs
Terminal Thread M8 x 1.25
Housing Material ABS Plastic
Housing Protection Rating IP55
Cell Type / Chemistry Cylindrical (LiFePO4)
Compatible Accessories EX-360-TDS, EX-BM350-KT
Warranty 12-Year Manufacturer Warranty
Assembly Required No - ready to install
Shipping Method Ships as a heavy parcel (~100 lbs); freight delivery may apply - contact us for details

FAQ

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

Yes - the Expion360 368Ah LiFePO4 battery is a direct upgrade from lead-acid batteries in most RV and off-grid applications. It offers significantly more usable capacity, faster charging, and a much longer lifespan. Be sure to verify your charger is compatible with LiFePO4 charging profiles (14.6V charge voltage) and update your charge settings accordingly. Do not mix this battery with lead-acid batteries in the same bank.

How many of these batteries can I wire together?

Per the manufacturer's guidelines, you should not wire more than four batteries in series or parallel. Always follow the wiring diagrams provided in the product manual to ensure proper configuration and safety. You can wire batteries in series to increase voltage, in parallel to increase amp hour capacity, or in a series-parallel combination for both.

What does the BMS protect against?

The integrated Battery Management System (BMS) protects against short circuits, overvoltage, undervoltage, overcurrent, and thermal extremes. It also performs automatic cell balancing to keep all cells operating evenly, which extends the overall lifespan of the battery and ensures consistent performance over thousands of cycles.

Is this battery safe to use in enclosed RV battery compartments?

LiFePO4 (lithium iron phosphate) chemistry is one of the safest lithium chemistries available - it is highly stable thermally and does not off-gas under normal operating conditions the way lead-acid batteries do. The IP55-rated housing provides protection against dust and water intrusion. Always ensure your compartment has adequate ventilation and follow the temperature guidelines in the manual for safe installation.

What charger do I need for this battery?

You need a charger that supports LiFePO4 chemistry with a recommended charge voltage of 14.6 Vdc and a float voltage of 13.6 Vdc. The recommended charge current is 120A, with a maximum of 180A. Many modern RV converters and solar charge controllers support LiFePO4 profiles - check your existing equipment settings or upgrade to a lithium-compatible unit before use.

Can this battery be used as a starter battery?

No - the Expion360 368Ah is designed as a deep cycle battery for sustained power delivery and should not be used as a starter/cranking battery. Using it as a starter battery is outside of its design parameters and is explicitly not recommended by the manufacturer.

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