Lithium-Ion Safety: MGN 681 Guidance & Battery Boxes
- Storage & charging solutions
- Supply, installation & training
- Guidance for flag & surveyor requests
Already know what you need?
Choose your battery safety box
Integrated batteries
Storage and charging solutions for toys with batteries inside.
Removable batteries
Storage and charging solutions for packs and spare batteries.
Need to become compliant—but unsure what you need?
Tell us your flag, tonnage and toys onboard. We will help you work out the right setup.
For captains, managers, shipyards & project teams
MGN 681 on your desk.
What does your yacht actually need?
You have the toys. You have a yacht to run. Now you need confidence that the battery-safety arrangement will meet the requirements raised by your flag, class or surveyor.
Choosing a box is only part of that decision. Will it suit your batteries? Can it work in your garage? What will your surveyor need to see? An expensive purchase can still leave those questions unanswered.
You do not need to work this out alone.
Tell Ocean Premium about your yacht and the requests you have received. We help you understand the next step, compare suitable equipment and plan the support needed to put it in place.
Requirements depend on the vessel and its administration. MGN 681 is guidance alongside applicable statutory and class requirements; a box alone does not establish yacht compliance.
Why waiting leaves you exposed
A battery failure can become a yacht emergency.
A lithium-ion battery can enter thermal runaway: an internal failure releases heat faster than it can escape. The reaction can spread, releasing flammable and toxic gases and creating a fire that may reignite.
The concern is not simply a damaged toy. It is a fire in the space where your equipment is stored, with crew, guests and the rest of the yacht to protect.
If a battery failed tonight, would you be confident in the protection around it? We help turn that question into a practical discussion about the equipment and support your yacht needs.
Guidance that leads somewhere
From “what do we need?” to a plan for your yacht.
Start with your flag, gross tonnage, toys and any surveyor requests. We help clarify the requirements, discuss suitable storage and charging options, and explain what needs to happen next.
From equipment supply and installation to crew training, maintenance and ongoing support, Ocean Premium helps you move the project forward. Any required acceptance remains with your flag administration, class or surveyor.
Tell us about the yacht
Share the equipment onboard and the questions you need answered.
Get help choosing
Discuss suitable boxes, the proposed installation and your next steps.
Put the plan in place
Arrange supply, installation, training and continuing support.
Explore the equipment
Two battery types. Start with what you carry.
Compare the options—or let us help you choose for a mixed fleet.
Integrated batteries
Storage and charging solutions for toys with batteries inside.
Removable batteries
Storage and charging solutions for packs and spare batteries.
Your yacht. Your requirements. Our help.
Not sure which box—or how to become compliant?
Send us your yacht details and the requirements you have been asked to meet. We will help you understand your options and the support needed to move forward.
The form opens in a new tab. Include your flag, gross tonnage, yacht size, operating status, toys onboard and any surveyor requests.
What’s worrying you most?
Start with your biggest concern
Short, specific reads for the questions captains and managers ask us most.
Questions
Before you get in touch
Can you help with MGN 681 compliance?
We help you understand the questions relevant to your yacht, compare equipment and plan supply, installation and support. Tell us your flag, vessel details and any surveyor requests so we can discuss the appropriate next step.
Does a Red Ensign flag mean every yacht needs the same box?
No. Your vessel, batteries and applicable requirements matter. We help you narrow the options rather than assume one box suits every yacht.
I already know which battery box I need. Can I enquire directly?
Yes. Use the integrated- or removable-battery route above, or contact us with the model, quantity and delivery location.
Can you help with an existing yacht or a new build?
Yes. We can discuss an existing setup, a refit or a new-build project and help plan equipment and ongoing support.
Official reference: MCA MGN 681 (M), Amendment 1 · REG Yacht Code and publications.
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