CMPower 450Ah LiFePO4 Battery – Coming Soon

Built for Serious Marine & Off-Grid Power Systems

Our upcoming 4th generation 450Ah (Group 8D size) LiFePO4 battery is designed for high-demand marine, van, and off-grid applications that require long runtime, high discharge performance, and dependable system integration - delivering an exceptional amount of power in a relatively small package.

Just a few years ago, this amount of power would have required much larger lithium battery systems. Comparable AGM systems can require roughly three times the space and up to four times the weight.

Developed for demanding marine and off-grid applications, this battery is built to deliver premium-level performance, advanced safety, and long-term serviceability.
Designed to compete in the premium 450-460Ah lithium battery category.

  • Expected availability: 8–10 weeks
  • Expected price: $2,189

* Final specifications, dimensions, and weight are subject to change prior to launch.

Technical Specifications

Feature Specification
Technology LiFePO4 Semi-Solid State Cell technology for enhanced safety and longevity
Battery Capacity 450Ah
Battery Size Group 8D
Performance 300A max continuous discharge (500A for 30s) and 300A max continuous charge (400A for 5s)
Durability IP65 rated (dust and water resistant)
Temperature Management Internal heating for charging below 0°C; high/low temperature disconnects
Connectivity Bluetooth (iOS/Android), NMEA2000 connection, and optional WiFi for cloud communication
Compatibility Victron communication compatible
Scalability Supports up to 16 batteries in parallel and up to 4 in series; includes battery-to-battery balancing
BMS Built-in Smart Battery Management System (field replaceable) with over-charge, over-discharge, over-current, and short-circuit protection. BMS Made by Daly.
User Interface Built-in State of Charge meter and on/off button
Certification UL1973 and IEC 62619 certified cells
Longevity 4,000+ cycle life; maintenance-free
Installation Easy-to-install secure mounting plate included.
*T-class fuse and holder sold separately

Download the Technical Datasheet

Get the complete specifications for the CMPower 450Ah Solid State LiFePO4 Battery, including dimensions, performance ratings, communication features, certifications, and installation information.
[Download Datasheet (PDF)]

Join the Early Access List

Be the first to know when the new 450Ah battery becomes available.

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  • Launch updates
  • Final specifications
  • Availability notifications
  • Early product information

Why This Battery Stands Out

Advanced Semi-Solid State Cell Technology

Unlike conventional LiFePO4 batteries, semi-solid state cell technology offers improved thermal stability, longer cycle life, and enhanced safety.

Benefits include:

  • Lower operating temperatures
  • Improved durability under demanding loads
  • Longer service life
  • Increased safety compared to conventional lithium battery designs

Field Replaceable Smart BMS

Most lithium batteries are sealed systems. If the Battery Management System (BMS) develops an issue, the entire battery often needs to be serviced or replaced.

Our removable-top design allows access to the internal BMS, making it field replaceable.

Practical advantages:

  • Serviceable design for long-term ownership
  • Ability to carry a spare BMS on extended trips
  • Faster troubleshooting and reduced downtime
  • Built-in protections for:
    • Over-charge
    • Over-discharge
    • Over-current
    • Short circuit
    • High & low temperature disconnects

BMS manufactured by Daly.

High Performance Power Delivery

Designed for high-demand systems and heavy inverter loads.

  • 300A max continuous discharge
  • 500A peak discharge (30 seconds)
  • 300A max continuous charge
  • 400A peak charge (5 seconds)
  • 4,000+ cycle life

Ideal for:

  • Larger boats
  • High-capacity inverter systems
  • Extended off-grid operation
  • Energy-intensive marine electronics

Cold Weather Charging Support

Integrated internal heating system helps protect the battery during charging in cold temperatures.

  • Charging support below 0°C (32°F)
  • Charger power safely warms the battery before charging begins
  • Automatic temperature protection built into the system

Marine System Integration

Designed to work seamlessly with modern marine and off-grid electrical systems.

Features include:

  • Bluetooth monitoring (iOS & Android)
  • NMEA2000 communication
  • Victron communication compatibility
  • Optional WiFi connectivity by special order
  • Built-in State of Charge meter
  • On/off button integrated into battery

Built for Expandable Systems

Flexible system scaling for larger installations.

  • Up to 16 batteries in parallel
  • Up to 4 batteries in series
  • Battery-to-battery balancing support

Durable & Installation Ready

  • Industry-standard Group 8D size
  • IP65 rated (dust and water resistant)
  • Secure mounting plate included
  • Maintenance free design
  • UL1973 and IEC 62619 certified cells

* T-class fuse and holder sold separately.

Who This Battery Is Designed For

This battery is ideal for:

  • Larger cruising boats
  • Offshore and long-range systems
  • High-power inverter applications
  • Van and mobile off-grid power systems
  • Users looking for long-term lithium system reliability

Coming Soon

We’ll continue updating this page as final specifications and additional product details become available.
Join the early access list above to receive launch updates and availability notifications.