What are the dimensions and weight?

Dimensions: 14.8" L x 13.0" W x 10.4" H. Weight: Approximately 110.2 lbs (47.7 kg).

What are the recommended charging settings?

Bulk/Absorption Voltage: 14.6V Float Voltage: 13.6V Recommended Charge Current: 72A Max Charge Current: 180A.

What is the maximum discharge current?

Continuous Discharge: 180A Max Discharge: 250A Pulse Discharge (1 second): 375A This high discharge rate allows it to power demanding inverters and appliances in RVs and off-grid setups.

12V 450Ah LiFePO4 Lithium Battery – EX1, Bluetooth

Name: 12V 450Ah LiFePO4 Lithium Battery – EX1, Bluetooth | Expion360
Brand: Expion360
SKU: EX-EX1-12450-B
Price: 5099.0 USD
Availability: InStock

Expion360 12V 450Ah LiFePO4 Battery – EX1 Extreme Density & Bluetooth

Maximize your energy storage with the Expion360 EX1 450Ah, the pinnacle of our Extreme Density line. By engineering this battery with advanced UL1642 recognized 4.5Ah cylindrical cells, we have achieved an industry-leading 450 Amp-Hours of capacity in a compact footprint—offering 22% more power than the 368Ah model without increasing the battery's size.

Ideal for massive power demands in luxury RVs and off-grid homes, the EX1 features a rugged IP55 water-resistant case and an integrated mounting system. To safely manage this industry-leading capacity, we utilize oversized brass terminals that maximize electrical connectivity and reduce heat buildup for enhanced safety. With full UL1973 compliance and SmartTalk™ Bluetooth monitoring, it delivers widely unmatched power density and safety.

Best For:

RV house battery systems
Overland and off-grid vehicles
Marine and boat power systems
Backup power and mobile work setups
Off-grid cabins and remote installations

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Pairs well with

Maximum Density: 450Ah in a Single Unit Experience the pinnacle of energy density. This single EX1 unit delivers a staggering 450Ah of capacity—equivalent to a massive bank of lead-acid batteries—in one compact, easy-to-install footprint. It is the ultimate power solution for luxury coaches, off-grid cabins, and marine vessels where space is at a premium but power demands are high.
SmartTalk™ Bluetooth Connectivity Manage your massive power reserve with precision. The onboard SmartTalk™ Bluetooth technology seamlessly pairs with your smartphone, giving you real-time access to critical data like remaining capacity, voltage, and system health without needing external monitors.
Next-Gen 4.5Ah Cell Technology Powered by Expion360's advanced 4.5Ah stainless steel encased 26650 cylindrical cells. This breakthrough technology delivers a 32% increase in energy density compared to standard cells, allowing us to pack 450Ah into a case size that typically holds much less, all while maintaining superior structural rigidity.
Robust IP55 Design & Integrated Mounting Designed for the real world. The IP55-rated enclosure resists dust and low-pressure water, making it suitable for tough environments. The integrated mounting feet eliminate the need for expensive aftermarket trays, simplifying installation in custom builds and battery bays.
12-Year Warranty & UL1973 Compliance Power your journey with total confidence. This battery is not only backed by an industry-leading 12-Year Warranty but also meets UL1973 standards for the entire battery system, ensuring the highest level of safety and reliability for your peace of mind.

Technical Specifications

Nominal Voltage	12.8V
Capacity	450Ah
Weight	110.2 lbs (47.7 kg)
Dimensions	14.8" L x 13.0" W x 10.4" H (375mm x 330mm x 266mm)
Charge Voltage	14.4V - 14.6V
Terminals	Oversized Brass
Communication	Bluetooth 5.0 (SmartTalk™)

Product Spec Sheet and User Manual

User Manual

View User Manual

Product Spec Sheet

View Spec Sheet

Advanced LiFePO4 Lithium Chemistry for Unmatched Longevity

Experience the pinnacle of energy storage with our high-grade LiFePO4 (Lithium Iron Phosphate) chemistry. Unlike traditional lead-acid batteries that fail after a few hundred cycles, the Expion360 e360 series is engineered for long cycle life, providing over 3,000 to 5,000 cycles at deep depths of discharge. Utilizing robust stainless steel encased 26650 cylindrical cells, this battery offers superior thermal stability and structural integrity, ensuring your power investment lasts for a decade or more of adventure.

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Real-Time Monitoring with SmartTalk™ Bluetooth

Eliminate "range anxiety" with integrated SmartTalk™ Bluetooth monitoring. By syncing your battery with our intuitive mobile app, you gain a high-tech window into your power system’s health. Track real-time metrics including State of Charge (SOC), voltage, current, and temperature directly from your smartphone. Whether you are managing a single unit or a massive bank, our smart BMS (Battery Management System) ensures you have the data you need to stay off-grid longer with total confidence.

SmartTalk™ APP

OEM-Ready Design for Scalable Power Systems

Whether you are a DIY enthusiast or a professional upfitter, our OEM-ready design offers the ultimate flexibility for scalable power systems. Featuring standard BCI group sizing for a direct drop-in fit and integrated CAN Bus communication, these batteries are built to grow with your needs. Seamlessly network multiple units in series or parallel to power heavy-duty inverters and sophisticated off-grid electronics, making it the preferred choice for high-end van builds and marine power grids.

Scalable Solutions

EX1 - 12V 450Ah LiFePO4 Lithium Battery – Features

Industry-Leading 450Ah Capacity

More power in the same space. By utilizing our advanced 4.5Ah cylindrical cells, we have packed a massive 450 Amp-Hours into this EX1 case. It offers the same physical dimensions as the 368Ah model but delivers significantly more runtime for your most demanding appliances.

Advanced Battery Management System (BMS)

The intelligent BMS acts as the brain of the battery, actively monitoring cell health 24/7. It provides fail-safe protection against overcharging, deep discharging, short circuits, and excessive currents, ensuring your battery operates safely for its entire 12-year warranty lifespan.

Integrated Mounting System

Secure installation, no straps required. The EX1 features a reinforced base with molded mounting points, allowing you to bolt the battery securely to the floor. This integrated design ensures your massive power bank remains stable and vibration-free on the road.

Bluetooth® Enabled

Stay connected to your power system wirelessly. Integrated Bluetooth® technology syncs seamlessly with the Expion360 SmartTalk™ app, allowing you to monitor real-time voltage, current, temperature, and remaining capacity directly from your smartphone without needing a separate monitor.

Oversized Brass Terminals

Engineered for maximum conductivity and mechanical strength, our oversized brass terminals provide a robust, low-resistance connection. This design minimizes heat buildup during high-current draws and ensures reliable power delivery for demanding electrical systems.

IP55 Water & Dust Resistance

Designed for the real world. The EX1 housing is rated IP55, offering robust protection against dust and low-pressure water ingress. This durability makes it a reliable choice for marine engine rooms and exterior vehicle compartments.

UL1973 Compliant Design

Safety is our standard. We use UL1642 recognized stainless steel encased cells and a high-performance BMS to ensure the entire battery meets UL1973 compliance. This protects you and your rig from thermal events, short circuits, and over-voltage scenarios.

EX1 - 12V 450Ah LiFePO4 Lithium Battery Technical Specifications

Battery Chemistry	LiFePO4 (Lithium Iron Phosphate)
Nominal Capacity	450 Ah
Nominal Voltage	12.8 V
Group Size	Custom EX1 Form Factor
Dimensions	14.8" L x 13.0" W x 10.4" H (375mm x 330mm x 266mm)
Weight	110.2 lbs (47.7 kg)
Communication	Bluetooth® (SmartTalk™ App)
Moisture Rating	IP55 (Dust & Water Jet Resistant)
Cell Type	UL1642 Recognized 26650 Cylindrical (4.5Ah Cells)
Safety Compliance	UL1973 Compliant, UL 1642 Recognized Cells
Mounting	Integrated Mounting Feet
Warranty	12 Years

FAQs

Product Specifications

This is a 12.8V nominal LiFePO4 battery with a massive capacity of 450 Amp-hours (Ah). It delivers approximately 5,760 Watt-hours (Wh) of energy, offering 22% more power than the 368Ah model in a similar footprint.

Dimensions: 14.8" L x 13.0" W x 10.4" H.
Weight: Approximately 110.2 lbs (47.7 kg).

It utilizes UL1642 recognized 4.5Ah stainless steel cylindrical cells (26650 form factor). These cells are encased in a steel jacket for structural rigidity and improved cooling compared to prismatic cells.

Expion360 offers a 12-year warranty on this battery, one of the longest in the industry.

Charging & Discharging

Bulk/Absorption Voltage: 14.6V
Float Voltage: 13.6V
Recommended Charge Current: 72A
Max Charge Current: 180A.

Continuous Discharge: 180A
Max Discharge: 250A
Pulse Discharge (1 second): 375A
This high discharge rate allows it to power demanding inverters and appliances in RVs and off-grid setups.

Yes, this battery can be wired in series (up to 48V) or parallel (up to 4 batteries) to increase voltage or capacity. Note: Always verify specific configuration limits in the user manual before installation.

Features & Durability

Yes, it features built-in Bluetooth connectivity. You can monitor battery status, including state-of-charge, voltage, and health, using the Expion360 SmartTalk™ app.

The battery housing is made of durable ABS plastic with an IP55 rating, making it resistant to dust and low-pressure water jets, though it is not designed for submersion.

Unlike the "Heated" versions of other Expion360 batteries, this specific 450Ah EX1 model does not typically include the internal VHC™ heating system. Its safe charging temperature range is 32°F to 140°F (0°C to 60°C). Attempting to charge below freezing can damage the battery.

It uses Oversized Brass Terminals with an M8 x 1.25 thread. These larger terminals maximize electrical contact and reduce heat buildup for safer high-current operation.

12V 450Ah LiFePO4 Lithium Battery – EX1, Bluetooth | Expion360