The battery passport is the first Digital Product Passport that is legally binding, dated, and enforceable. From 18 February 2027, every EV, industrial and light means of transport (LMT) battery above 2 kWh placed on the EU market must carry a QR-linked digital record — regardless of where the battery, or the vehicle around it, was manufactured.
If you make, import or integrate batteries, this is not a distant policy discussion. It is a product-labelling requirement with a hard date, and the data behind it takes months to assemble.
Time until the battery passport becomes mandatory
Where the obligation comes from
The battery passport is not created by the ESPR. It comes from the Battery Regulation (EU) 2023/1542, which entered into force in August 2023 and phases in obligations over several years. Article 77 establishes the battery passport itself; the annexes define its content.
That distinction matters for two reasons:
- The date is firm. Unlike ESPR delegated acts — where timelines depend on the Commission's rulemaking pipeline — the battery passport deadline is written into the regulation. It will not slip because a working group runs late.
- It is the reference model. The Commission treats the battery passport as the prototype for every ESPR-based passport that follows. The infrastructure patterns being validated now — unique identifiers, persona-based access, registry synchronisation — are the patterns textiles, electronics and furniture will inherit.
Who is in scope
The passport obligation attaches to the battery placed on the EU market, not to the company that happens to sell it. In scope from February 2027:
- Electric vehicle batteries — every traction battery in a new EV sold in the EU, including packs assembled outside the Union.
- Industrial batteries above 2 kWh — stationary storage, forklifts, telecom backup, grid-scale installations.
- LMT batteries — e-bikes, e-scooters, and other light transport, above the 2 kWh threshold.
The "economic operator placing the battery on the market" — usually the manufacturer or the importer — is responsible for creating the passport and keeping it accurate. If you import cells from Asia and assemble packs in Europe, you are the responsible operator. If you buy finished packs and integrate them into machines, check your contracts now: responsibility follows the placing on the market, and it cannot be wished away by a purchase order.
What data the passport must contain
The annexes of the Battery Regulation list dozens of data points. They cluster into five groups:
1. Identity and general information
Manufacturer, category, weight, chemistry, manufacturing date and place, plus the unique identifier itself. This is the easy part — most of it already exists in your ERP.
2. Carbon footprint
A lifecycle carbon footprint declaration, calculated according to the Commission's methodology, expressed per kWh of energy delivered over the battery's service life, and eventually assigned to a performance class. Carbon footprint declarations became mandatory for EV batteries in 2025; the passport surfaces them per unit.
3. Recycled content
Declared shares of recovered cobalt, lithium, nickel and lead in active materials. These become minimum quotas later (2031 and 2036 respectively), but the declaration obligation arrives with the passport.
4. Supply-chain due diligence
Evidence that your sourcing of cobalt, natural graphite, lithium and nickel follows the OECD due-diligence guidance — policies, audits, grievance mechanisms. This is the group that surprises teams most, because the data lives in procurement and legal, not engineering.
5. Performance and durability
Rated capacity, expected lifetime, and — crucially — dynamic data updated over the battery's life: state of health, cycle count, and significant events like deep discharges or thermal incidents. A battery passport is not a printed datasheet; it is a living record.
Who sees what
Not everyone sees everything. The regulation defines differentiated access:
- The public (anyone scanning the QR): general battery information, carbon footprint class, recycled content.
- Legitimate-interest parties — repairers, remanufacturers, second-life operators, recyclers: dismantling information, safety data, state of health.
- Market surveillance authorities and the Commission: everything, including compliance documentation.
Technically, this means one identifier must resolve to different views per audience — the persona-based resolver pattern. Get this wrong in either direction and you have a problem: expose supplier data publicly and you leak commercial secrets; lock down repair information and you breach the regulation.
How the passport is delivered
The passport must be accessible through a QR code printed or engraved on the battery, compliant with ISO/IEC 18004. The identifier behind it must be unique per unit and remain resolvable for the battery's entire lifetime — including through resale, repurposing and second-life use.
Two design decisions follow directly:
- Use GS1 Digital Link as the identifier scheme. It encodes a GTIN plus serial into an ordinary HTTPS URL, satisfies the ISO/IEC 15459 uniqueness requirements, and doubles as a retail barcode under Sunrise 2027. (We compare the alternatives in GS1 Digital Link vs proprietary QR.)
- Plan for persistence beyond your own company. The record must outlive corporate events — insolvency included. That is a hosting-contract question as much as a technical one, and it is exactly the problem EU DigiPassport exists to absorb.
Working backwards from February 2027
Eight months is less time than it looks when the critical path runs through suppliers. A realistic countdown:
- Now – Q3 2026: data audit. Map every required data point to a source system and an owner. The gaps are almost always carbon footprint inputs and due-diligence evidence from tier-2+ suppliers.
- Q3–Q4 2026: close supplier gaps. Contractual data clauses, supplier portals, third-party verification where needed. Budget at least one full quarter — mills and mines do not answer questionnaires quickly.
- Q4 2026: integrate and pilot. Connect your ERP/PLM to a passport platform, mint passports for a pilot line, print QR codes on real units, scan-test through the full persona matrix.
- January 2027: register and go live. Sync records with the EU registry infrastructure, freeze your labelling artwork, and leave a buffer for the inevitable late surprises.
What compliance actually buys you
It is tempting to treat the passport as pure regulatory overhead. In practice, early movers are finding commercial upside: second-life buyers pay more for packs with verifiable state-of-health history; fleet customers are writing passport data access into procurement requirements; and recyclers can quote recovery contracts against known chemistry instead of assumed worst cases.
The battery passport is the EU's bet that transparent products outcompete opaque ones. From February 2027, that bet becomes the price of admission to the single market — and every other product category is watching how it lands.
Want a battery-specific readiness assessment? Book a consultation and we'll map your packs against every annex requirement — and mint a sample passport for one of your own SKUs.