Choose from compact metal-case batteries and sealed marine-oriented options according to the installation environment.
Marine
LiFePO4 battery power for boats, yachts and marine systems
Choose a marine battery around your onboard loads, charging sources, installation environment and the level of system communication you need.
Built-in self-heating supports charging in cold conditions across the current SOK battery range.
Bluetooth and wired communication options on selected models help keep battery information visible within a broader marine electrical system.
Selected SOK models are designed for practical access and maintenance rather than treating the battery as a permanently sealed black box.
Recommended for
Marine
View all →
Recommended marine batteries
System planning
Choose the voltage that fits your system
Start with your inverter, charging sources, loads and existing electrical architecture. For multi-battery systems, confirm model compatibility before installation.
Why SOK
Match the battery to the boat—not the other way around
House loads, inverter size, shore charging, alternator charging, solar and available installation space all affect the right battery choice. Waterproof or sealed protection is model-specific.
Discuss your system →Selected SOK models use serviceable construction to make long-term ownership and component access more practical.
Selected models offer self-heating for charging in cold conditions; operating limits remain model-specific.
Bluetooth, CAN and RS485 availability varies by model for monitoring and system integration.
Selected models support Victron-compatible communication for integrated battery monitoring and system control.
Buying guide
Questions before you choose
Model specifications differ. Use these answers as a starting point, then check the product page or contact SOK for a system-specific recommendation.
Do all SOK marine batteries have the same water protection?
No. Enclosure and ingress-protection design varies by model. Choose the exact product according to where and how the battery will be installed on the vessel.
Can I use SOK for a 12V or 24V marine house bank?
Yes, SOK offers both 12V and 24V options. Confirm required capacity, maximum load, charging equipment and permitted series/parallel configuration before installation.
Can SOK communicate with a Victron marine system?
Selected models support Victron-compatible CAN communication. Check the model page for the exact interface and integration details.
What should I provide for a marine battery recommendation?
Share vessel type, system voltage, inverter, shore charger, alternator or DC-DC charger, solar, major loads, available battery space and whether the installation area can be exposed to moisture.
Need help choosing?