EU battery passport from February 2027: what it means for electric boats

Anyone ordering an electric boat this winter, or having the traction battery replaced, is buying across a deadline. Under Article 77 of the EU Batteries Regulation, Regulation (EU) 2023/1542, every battery for light means of transport, every industrial battery with a capacity above 2 kWh and every electric vehicle battery placed on the market or put into service from 18 February 2027 must have an electronic record, the battery passport. From the same day Article 13 requires all batteries to carry a QR code. For those three groups the code leads to the passport, for all others to the mandatory information and the declaration of conformity.

The Regulation applies to batteries placed on the EU market. A boat bought in Great Britain from a British builder and kept there is outside it; a boat or a replacement battery bought from a builder or dealer in Ireland, the Netherlands or Germany after that date is inside. Boats are not named in the definitions. An electric vehicle battery is one for road vehicles of categories L, M, N and O, and a battery for light means of transport drives wheeled vehicles and weighs 25 kg or less. Everything else falls under a catch-all: an industrial battery is also any other battery above 5 kg that is neither of those nor a starter battery. On that wording the traction battery of an electric boat is an industrial battery and needs the passport once it holds more than 2 kWh. That is our reading of the text, not an official interpretation for leisure craft.

Annex XIII sets out what the passport contains. Open to anyone are, among other things, the cell chemistry, the rated capacity, the voltages, the expected lifetime in cycles, the temperature range and the period of the commercial warranty. The QR code links to a unique identifier for the individual battery. One expectation needs correcting. Up to date state of health data in the battery management system has been required by Article 14 since 18 August 2024 only for stationary storage, batteries for light means of transport and electric vehicle batteries. For a boat battery the passport is therefore an identity document first, and not necessarily a health report.

What does this mean for a hull policy? In the wording, usually nothing: contracts written before 2027 do not mention the passport, and there is no duty to retrofit a battery already on board. What matters is the electric propulsion clause, if the policy has one, and it is worth reading before a claim. Check whether the battery is insured as part of the boat or under a separate limit, whether consequential damage after a short circuit is capped, and whether a shore charger is included. Look for duties, such as recharging regularly during winter storage, and for exclusions that often appear in such clauses: work on the battery by the owner, improper charging, deep discharge, wear, and propulsion systems without CE certification.

Where the passport does help is evidence. After a fire or a theft the insurer will ask which battery was on board, and the unique identifier, chemistry and capacity are exactly the details that are hard to reconstruct from a burnt-out locker. A new or larger battery also changes the value of the boat, so the sum insured should be reviewed when the invoice arrives. And if the contract excludes propulsion without CE certification, the declaration of conformity belongs in the same folder as the passport and the invoice. None of this is new law for the owner. It is simply the first time the documents come with the battery by default.

Who is affected? Buyers of a new electric boat or of a motor yacht with hybrid drive whose battery reaches the market after the deadline, and owners who retrofit or replace a battery. On the second hand market from 2027, asking for the QR code will become as routine as asking for the hull identification number; a battery sold as new without one is a reason to ask questions. One point is open. Amendments to the Regulation are being discussed in Brussels in 2026, and it is not possible to say here whether the date will be touched. This article is based on the consolidated text of 31 July 2025. What counts is the version in force on the day the battery is placed on the market.