CTS 307V-400V 50Ah-150Ah LiFePO4 Marine Battery with IP67 Waterproof for Electric Catamarans and Yachts

The global marine industry is accelerating the shift to electrification. Catamarans, yachts and sailboats have rapidly growing demand for high voltage marine batteries. Compared to traditional lead acid batteries, LiFePO4 batteries offer lighter weight, longer cycle life and higher safety.

CTS Battery introduces its 307V-400V high voltage platform, 50Ah-150Ah capacity, 20kWh-50kWh energy LiFePO4 marine battery system, designed specifically for electric catamarans, yachts and electric boats to help vessel owners lower operating costs and improve sailing experience.

Whether you are an OEM shipyard developing new electric vessels or a boat owner planning to retrofit existing boats to electric propulsion, CTS provides customized lithium battery solutions tailored to your needs.

The CTS High Voltage Marine Battery System is a future-ready vessel power solution:

• 307V-400V High Voltage Platform: Lower current, less heat, 15%-20% energy efficiency gain
• 20kWh-50kWh Energy Reserve: Full day cruising for catamarans and yachts
• Deep Cycle Design: Designed for propulsion systems, supports long duration continuous discharge
• Smart BMS + CAN: Full protection against overcharge, over discharge, over temperature, short circuit – real time communication with motor controller
• Future Ready: Supports wireless BMS, 4G remote monitoring (optional)

Advantage 1: IP67 Waterproof & Salt Spray Proof – Survives Marine Environment

The biggest threats to marine batteries are saltwater corrosion and humidity. CTS marine batteries feature a fully sealed design with IP67 protection rating, capable of operating after 30 minutes of immersion in 1 meter of water. Passes salt spray tests for corrosion resistance.

Advantage 2: 4000 Cycle Life – 70% Lower Total Cost of Ownership

LiFePO4 cells deliver over 4000 cycles at 80% Depth of Discharge, equivalent to 8-10 years of service life. Compared to lead acid batteries (replaced every 1-2 years), operating cost is reduced by approximately 70%.

Advantage 3: Lightweight Design – Higher Speed

CTS marine batteries weigh only 1/3 of lead acid batteries at the same capacity. Lighter weight means reduced vessel load, higher speed, lower energy consumption and easier installation.

Advantage 4: Smart BMS with CAN Communication – Real Time Monitoring

Battery Management System provides multi-layer safety protection and communicates with the marine motor controller via CAN bus, uploading voltage, current, state of charge, temperature and fault codes.

Advantage 5: Full OEM Customization – Fits All Vessel Types

CTS is a direct factory offering full customization: voltage 48V-1000V, capacity 50Ah-1000Ah, size to fit various vessels, communication protocol and connector type.

Advantage 6: 2 Year Warranty + Technical Support

CTS provides a 2 year standard warranty and technical support on all battery systems for peace of mind.

The CTS High Voltage Marine Battery is suitable for the following electric vessel applications:

• Electric Catamaran
• Electric Yacht
• Electric Sailboat
• Electric Boat
• Fishing Vessel Propulsion

At CTS Battery, we don't just supply batteries, we provide complete power solutions for marine vessels. If you are developing or upgrading electric vessels, choosing the right battery partner is critical. Send us your requirements today and our engineering team will respond within 24 hours.

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