Marine Lithium Battery Compliance Documents: What to Check

Marine Lithium Battery Compliance Documents: What to Check: steps

Ask which standards the pack is tested to
Request the actual test reports rather than a compliance claim on a web page. A supplier who cannot produce documentation for a battery going into a boat is telling you something useful.
Read AS/NZS 3004.2 as the installation standard
It covers electrical installations on small craft, and it governs how the bank is installed rather than which battery you chose. Most disputes are about the installation, not the cells.
Ask your insurer before the work starts
Insurers vary widely on lithium. Some require a licensed installer and a certificate, some ask about fusing and ventilation specifically, and some exclude it. Get the answer in writing while you can still act on it.
Check the marina's conditions
Some marinas have their own rules about lithium on the hardstand or on shore power. These are easier to find out now than after an incident.
Keep the commissioning documentation
A wiring diagram, the charge parameters set, fuse ratings and the installer's details. This is the evidence pack that answers both the insurer and the next owner.