Product Description

Marine Lithium Battery | High-Voltage Propulsion for Heavy Duty Boats

The global transition to electric and hybrid marine propulsion is accelerating across yachts, catamarans, and commercial vessels. As operators seek cleaner, quieter, and more efficient power solutions, lithium battery systems are becoming the preferred choice.

CTS Battery provides customized high-voltage lithium ion marine battery solutions for heavy-duty applications. The 409V 314Ah battery pack is designed to deliver reliable propulsion power, long service life, and safe operation under demanding marine conditions.

Our solutions are designed to deliver:

• Reliable high-voltage power for continuous marine propulsion
• High energy density with reduced system weight
• Safe and stable operation in saltwater environments
• Seamless integration with electric and hybrid systems

Whether building a new electric vessel or upgrading an existing system, CTS helps you create a safe, high-performance, and future-ready marine power system.

The Advantages of Marine Lithium Battery

Built for Harsh Marine Environments

Marine vessels operate in corrosive saltwater, high humidity, and constant vibration. This battery system features IP67 protection, corrosion-resistant enclosure, and robust structural design to ensure long-term durability.

Lightweight & High Energy Density

Compared to traditional lead-acid batteries, lithium batteries offer significantly higher energy density, reducing weight and improving vessel efficiency and range.

Smart BMS with Advanced Protection

Built-in intelligent Battery Management System ensures:

• Overcharge / over-discharge protection
• Short circuit and overcurrent protection
• Temperature monitoring and control
• Cell balancing for extended lifespan
• Real-time communication via CAN / RS485

Flexible Customization for Your Vessel

Different vessels require different power solutions. We offer:

• Voltage platforms: 300V / 400V / 500V / 600V+
• Capacity customization
• Liquid cooling or heating options
• Communication protocols integration
• Marine-grade enclosure design
• Modular structure for easy installation

The high-voltage system integrates seamlessly with marine motors, inverters, and energy management systems, making it ideal for both new builds and retrofits.

Technical Specifications

Applications

• Luxury Yachts (electric & hybrid propulsion)
• Sailing and Power Catamarans
• Electric Speedboats
• Passenger and Tour Boats
• Fishing and Workboats
• Patrol and Research Vessels
• Marine Energy Storage Systems

Work with a True OEM Marine Battery Partner

At CTS Battery, we don’t just supply batteries — we provide complete high-voltage marine power solutions.

With strong OEM/ODM capabilities, we support your project from concept to delivery. Whether you are developing a new electric vessel or upgrading an existing one, choosing the right battery partner is critical.

Send us your project requirements — our engineering team will respond within 24 hours.