Volthium 12V 400AH LiFePO4 Battery – UL1973

SKU: 12.8-400-G8DY-CH2O

Volthium’s Canadian engineering sets their 12V 400Ah Battery apart from the competition. Every component of this battery is carefully selected to ensure optimal performance and scalability for future needs. With a focus on cutting-edge communication protocols, customized development for clients, and integration of technologies tailored to the Canadian environment, Volthium is renowned for its unwavering commitment to design quality.


  • Capacity: 400Ah
  • Voltage: 12.8V
  • Continuous Discharge Current: 100A
  • Max Continuous Current: 200A
  • Peak Discharge: 300A (3sec)
  • Charging Voltage: 14.2 – 14.6 V
  • Weight: 104 lbs.
  • Dimensions (L x W x H): 20.47 x 10.55 x 9.6 inches
  • Operational Temperature Range: -22° to 140°F (-30° to 60°C)
  • BMS Access 
  • 10-year Limited Warranty
  • Engineered in Canada
  • Short Circuit Protection
  • High & Low Temperature Protection
  • Certifications: ABYC  |  UL1642  |  UL1973

73 in stock




Volthium 12V400AH LiFePO4 Battery: The Rugged Power Solution

Experience unmatched power and reliability with the Volthium 12V 400Ah Battery, designed to meet the demands of boats, sailboats, motorized vehicles, and industrial applications. Built with precision engineering and cutting-edge features, this battery sets a new standard for performance and durability.

Superior Communication and Alert System 

Stay connected and in control with the Volthium 12V400AH battery’s integrated communication capabilities. With the Volthium Monitor application on your cell phone, you can set personalized alerts for specific State of Charge (SOC) percentages and receive warnings for high and low temperatures. This advanced feature, compliant with ABYC standards, keeps you informed and ensures the optimal performance of your battery.

Repairable BMS for Extended Lifespan 

Volthium batteries are designed to go the extra mile. The 12V400AH battery features an accessible and reserved chamber for the Battery Management System (BMS). This innovative design allows for easy user-performed repairs. 

Integrated Cooling System for Enhanced Performance 

Keep your battery cool and maximize its efficiency with the integrated cooling system. The conductive aluminum plate and heat sink allow heat to dissipate effectively, expanding the usable temperature range even further. Additionally, you have the option to attach an additional cooling system, providing unrivaled thermal management and performance optimization.

Effortless Discharge Control 

Say goodbye to parasitic discharges and enjoy hassle-free storage with the Volthium 12V400AH battery’s stainless steel discharge deactivation button. This exclusive feature allows you to disable the discharge while keeping the recharge authorized. Keep your batteries connected to the solar system during storage without the worry of energy loss.

Seamless Communication and Expansion 

The Volthium 12V 400AH Battery is equipped with two RJ45 ports, featuring gold-plated pins for reliable communication on the RS485 protocol. These connectors also enable seamless transmission of battery information to the Victron environment using the VE.CAN protocol. Expand the battery’s capabilities with the Volthium HUB accessory and add the Volthium Bluetooth Dongle to handle up to 4 batteries when paired with the HUB.

Unmatched Performance in Any Conditions 

Volthium batteries redefine performance standards. The GRADE A+ prismatic cells, manufactured by the Volkswagen Group, provide unparalleled quality and long-term reliability. That means this LiFePO4 battery is not only resistant to vibrations, but also boasts an impressive discharge range as low as -30 degrees Celsius. 

Unparalleled Quality and Expertise 

Volthium’s commitment to excellence is evident in every aspect of their batteries. The BMS core is supplied by the renowned American company Texas Instruments, known for their exceptional microcontroller technology. Volthium’s engineers in Quebec have developed the programming and communication protocols, ensuring optimal performance tailored to Canadian environmental conditions.

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Additional information

Weight 104 lbs


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