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Marine lithium upgrades

Marine lithium battery upgrades.

LiFePO4 battery upgrades with charging, protection and monitoring considered together.

Plan your lithium upgrade

Examples of lithium upgrades

These are examples of work we can plan for your boat, rather than completed case studies.

A Fogstar house battery upgrade

Choose a suitable battery capacity, review shore and solar charging, and check alternator charging arrangements and battery protection.

A monitored power system

Combine a suitable lithium bank with battery monitoring and compatible Victron equipment so you can understand how much energy remains.

A system for longer stays aboard

Plan inverter loads, charging sources, usable storage and future expansion around your actual time afloat.

Allow around two weeks for a full installation

A complete installation typically takes around two weeks of installation work. Your written quote will confirm the scope and expected schedule after we have assessed the boat. Equipment availability, access and additional work can affect this estimate. Smaller upgrades are planned individually; booking lead time is separate.

Explore equipment we supply How Victron systems work →

Why consider lithium?

Lithium iron phosphate batteries offer high energy density: more energy for their weight and volume. Efficient charging and the ability to accept higher charging currents can be useful too, where the selected battery and charging system support them.

A battery upgrade, not just a battery swap

We consider the compatibility of shore-power chargers, solar controllers and alternator charging, alongside protection and monitoring. Different batteries have different requirements, including how their battery management system connects to the rest of the installation.

Choose around your own use

The right capacity depends on what you want to run, how long you spend away from charging and the installation space. We can discuss Fogstar batteries and Victron equipment as part of the options, without assuming one setup suits every boat.

Further reading: Victron lithium battery guide · Fogstar charging questions.

Let’s talk about your boat

Your next chapter
starts with a conversation.

Call or email to discuss your electrical, electronics, solar or lithium project. Include your boat’s location so we can talk through the next steps.