Marine Battery Storage Solutions

Marine Battery
Storage Solutions

High-performance LiFePO4 power for yachts, electric boats, and commercial marine applications.

Marine Battery Module
Marine Battery Family
51.2V 280Ah Marine LiFePO4 Battery

51.2V 280Ah High Voltage Marine LiFePO4 Battery Module

Scalable high-voltage marine energy storage system (96V-600V). IP67 waterproof, with project-specific documentation requirements reviewed for the final configuration, and designed for heavy-duty electric propulsion. This modular 14.3kWh unit is a high-voltage module option for electric marine vessel projects.

DNV requirements review
IP67 Waterproof
UN38.3 documentation review
CE documentation review
MSDS / safety data review
600V DC ScalabilityConnect 10-12 modules in series
14.33 kWh EnergyMassive power per 280Ah module
Harsh EnvironmentIP67 fully sealed metal housing
≥ 6,000 CyclesTier-1 Prismatic LiFePO4 cells

The Ultimate Power Solution for Electric Marine Vessels

The CLF 51.2V 280Ah Marine Battery Module is a professional-grade energy storage unit designed for high-voltage series connection. Designed for marine applications, this system supports scalable battery-bank planning from 96V to 600V DC; applicable classification requirements should be confirmed for the final project configuration.

Unlike standard batteries, this 14.3kWh module features a heavy-duty, IP67 waterproof enclosure and advanced thermal management, making it ideal for the harsh environments of electric ferries, yachts, and commercial workboats.


Request a Professional System Design

Building a high-voltage system requires precise engineering. We offer Free Consultation for your project. Click "Get a Quote" to regarding:

  • Custom Voltage Configuration (e.g., 350V, 500V)
  • BMS Topology & HV Box Selection
  • Installation Space Assessment

Technical Specifications

Electrical & Performance
ModelCLF-51280-HV (Marine Series)
Nominal Voltage51.2V
Nominal Capacity280Ah
Total Energy14.33 kWh per module
Series ScalabilitySupports up to 600V DC (10-12 Modules)
Max. Discharge Current280A (1C) Continuous
Cycle Life≥ 6,000 Cycles @ 80% DOD
Mechanical & Environmental
Dimensions870 × 500 × 242 mm
WeightApprox. 110 kg
IP RatingIP67 (Waterproof)
Cooling MethodNatural / Liquid Cooling (Optional)
Documentation / requirementsDNV, CE, UN38.3 and MSDS records, as applicable to the final configuration
Warranty3 Years (Extendable to 5)

Key Advantages of the Marine Module

  • High Voltage Scalability: Specifically designed for series connection. Easily build 300V+ systems for powerful electric propulsion motors.
  • Marine documentation review: Applicable classification and safety documentation should be confirmed for the final vessel and battery configuration.
  • IP67 Waterproof Protection: Fully sealed metal housing protects internal cells from saltwater spray, humidity, and dust.
  • Long-Term Value: Powered by Tier-1 Prismatic LiFePO4 cells; the stated module specification is at least 6,000 cycles at 80% depth of discharge, while service life depends on operating conditions.
  • Smart Master-Slave BMS: Supports CAN Bus / RS485 communication for real-time monitoring of every single cell in the high-voltage string.

Technical Brief: 400V Electric Ferry Retrofit

System: 409V 280Ah (114kWh)
Configuration: 8S1P
Motor Match: 150kW Peak

The Engineering Challenge

Example design scenario: a commercial ferry powertrain may be evaluated around a stable 400V DC bus for a 150kW electric propulsion motor. Final electrical and installation requirements depend on the vessel project.

The CLF Solution & Results

An example configuration uses 8 CLF-51280 modules connected in series to calculate approximately 409.6V and 114.7kWh. The final pack design, installation space and performance should be confirmed for the vessel project.

✓ Space planning: The final footprint depends on vessel layout and installation requirements.

✓ Operating duration: Actual runtime depends on vessel load, duty cycle, conditions and battery configuration.

✓ Project review: Emissions and regulatory outcomes depend on the complete propulsion system and applicable local requirements.

Marine FAQs & Custom Solutions

Can I replace my diesel engine with your battery system?

Yes. We can support a diesel-to-electric conversion review for a fishing boat, electric yacht or other marine project. The final powertrain scope may include the battery pack, BMS and high-voltage PDU, subject to the vessel requirements.

Why choose Chalong Fly LiFePO4 over lead-acid or AGM for marine use?

LiFePO4 and lead-acid/AGM batteries can have different weight, space and cycle-life characteristics. The result depends on the final battery configuration, installation and operating conditions. This module specification lists at least 6,000 cycles at 80% depth of discharge; project comparisons should use the same basis.

What does "DNV Standard" mean for my project?

DNV is a maritime classification framework. Whether DNV requirements, testing or documentation apply depends on the vessel, project scope and final configuration. We can review the applicable requirements during system design.

Can you customize a battery pack for my specific marine requirements?

Yes. We provide OEM/ODM support. We can review voltage, capacity, dimensions and vessel space constraints, then confirm a project-specific configuration. Please share the vessel technical specifications and installation constraints for review.

Do you only make high-voltage marine batteries?

No. This module is for high-voltage applications, while the page also describes support for other marine battery configurations such as 12V, 24V/36V and 48V systems. Final availability and configuration depend on project requirements.

What is the lead time for custom marine battery orders?

Lead time depends on project scope, configuration, documentation requirements and production scheduling. Please share the project requirements so a schedule can be reviewed.

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