What applies and when
Passport mandatory from 18 February 2027 for electric vehicle, light means of transport and industrial batteries above 2 kWh. The hard part is data from cell, material and sourcing suppliers. A QR code is required on all batteries from the same date.
Battery supply chain due diligence is a separate date, and the two are easy to confuse. They need different preparation.
Calendar last checked on 31 October 2026. Confirm the current status on EUR-Lex.
- 18 Aug 2026Date set in the Batteries Regulation for the implementing act on who may access battery passport data (legitimate interest). Not adopted by this date. Commission timetable: Q4 2026.Law
- Q4 2026Implementing act on battery passport access rights expected.Indicative
- 18 Feb 2027Battery passport mandatory for electric vehicle, light means of transport and industrial batteries above 2 kWh (Regulation (EU) 2023/1542, Article 77). QR code on all batteries from the same date (Article 13(6)).Law
- 18 Aug 2027Battery supply chain due diligence obligations apply (postponed by Regulation (EU) 2025/1561).Law
The six data categories
Annex XIII of Regulation (EU) 2023/1542 sets the content. Seen by category, each one has an owner, and the list turns into a work plan. Our guide to battery passport data requirements goes through them in more detail.
Identification
Who made the battery, which model it is, and when and where it was made. It has to be consistent across your systems, because the passport is linked to the product by a persistent identifier.
Who holds it: Usually your own company
Composition and materials
What the battery is made of, including its chemistry and materials. You need it in a form you can check, such as a datasheet or a certificate.
Who holds it: Usually cell and material suppliers
Performance and durability
Capacity, expected lifetime and the other performance values the regulation lists. The work is collecting them into one record.
Who holds it: Usually your engineering and test teams
Carbon footprint
A declared carbon footprint with the study behind it. The quality of supplier input decides the quality of the result.
Who holds it: Your company, drawing on supplier data
Supply chain
Where materials come from and the due diligence behind them. It is often the slowest category to collect.
Who holds it: Usually raw material suppliers and their upstream partners
End of life
Information for dismantling, reuse and recycling, written for the people who will handle the battery after you.
Who holds it: Usually your technical documentation
Why supplier data is the bottleneck
Composition, carbon footprint and supply chain data sit with cell, material and sourcing suppliers, several tiers away from you. Each answers in its own format, often as a PDF in an email.
Less than four months is not long to collect that from many suppliers. Starting with one battery line lets you test the process before the date.
- Give every category a named owner, inside or at a supplier.
- Ask for evidence with each value, so a reviewer can check it.
- Record who approved each value and when.
- Track expiry dates for the certificates behind the data.
How AuditSci DPP runs it
The same four stages apply to every product group. For batteries you choose the battery scope and request the six categories from the people who hold them.
Define the scope
Choose the product group and the passport requirements that apply. Requirements are kept as versioned schemas.
Collect from suppliers
Suppliers receive a secure link and send data and documents from a phone or a desktop. No account is needed to respond.
Verify the data
Each field is checked for completeness and format. AI can suggest values from documents. A person reviews and approves every field, and each approval is logged.
Publish the passport
The passport is published as a signed, versioned record behind a QR code, with separate views for the public and for authorised parties.
What is still open
The regulation set 18 August 2026 for an implementing act on who may access battery passport data, in particular parties with a legitimate interest. It was not adopted by that date. The Commission timetable points to Q4 2026, which is indicative.
In practice, the access rules may still change. Keep each value tagged by who should see it (the public, parties with a legitimate interest, authorities), so you can follow the final act without redoing the data.
This page explains the regulations in general terms and is not legal advice. AuditSci is a technology platform and does not certify conformity. Responsibility for conformity stays with the economic operator.
Battery passport questions
Which batteries need a passport from 18 February 2027?
Electric vehicle batteries, light means of transport batteries and industrial batteries with a capacity above 2 kWh (Regulation (EU) 2023/1542, Article 77). Check each product against the definitions in the regulation, because the category decides which obligations apply.
Is the QR code the same thing as the passport?
No. The QR code is the access point. From 18 February 2027 batteries must carry one (Article 13(6)), and the passport behind it needs structured, reliable data, persistent identification and access permissions.
What information does a battery passport contain?
The content is set out in Annex XIII of Regulation (EU) 2023/1542 and includes battery identification, composition, performance, carbon footprint, supply chain and end-of-life data. The annex is the authority, so read it for the exact list.
Who is responsible for the passport?
The economic operator placing the battery on the EU market, typically the manufacturer or in some cases the importer. AuditSci provides the technology to collect, validate and maintain the information, but legal responsibility stays with the economic operator.
Are the access rules for battery passport data final?
No. The implementing act on who may access the data was due on 18 August 2026 and had not been adopted by then. The Commission timetable indicates Q4 2026. You can prepare the data and the process now, and tag each value by who should see it.