The EU Digital Battery Passport: Who Is Affected, What Must Be Done, and When

A practical guide to product scope, organisational responsibilities, data obligations, and the February 2027 deadline

An evidence-based guide to the European Union’s digital battery passport, explaining which batteries and organisations are affected, what each participant must prepare, and when the principal obligations take effect.
energy
essay
regulation and compliance
🇬🇧
Author
Affiliation

Antonio Montano

4M4

Published

July 18, 2026

Modified

July 18, 2026

Abstract

The European Union’s digital battery passport is an electronic record for individual electric-vehicle batteries, light-means-of-transport batteries, and industrial batteries with a capacity greater than 2 kWh. For batteries placed on the Union market or put into service from 18 February 2027, the passport must provide prescribed product, sustainability, performance, durability, conformity, repair, and lifecycle information through differentiated access rights.

Although the central legal responsibility falls on the economic operator placing the finished battery on the market, compliance depends on a wider information chain. Material, cell, and module suppliers must provide reliable source evidence; battery and vehicle manufacturers must integrate and validate it; importers and private-label operators must determine whether they assume the responsible role; technical providers must support interoperable and durable records; and repair, repurposing, remanufacturing, waste-management, and recycling operators must update or succeed the record as the battery changes status.

This article argues that the battery passport should be treated as governed lifecycle data infrastructure rather than as a QR-code or labelling project. It distinguishes directly regulated batteries and organisations from supporting participants, explains the required information and access structure, reconstructs the implementation timetable as it stood on 18 July 2026, and translates the legal framework into a role-based preparation plan. It also identifies areas in which secondary legislation, technical operation, and industry practice were still developing.

Keywords

EU Digital Battery Passport, battery passport regulation, Regulation (EU) 2023/1542, digital product passport, Cyber Resilience Act, Regulation (EU) 2024/2847, battery compliance, electric vehicle batteries, EV battery passport, light means of transport batteries, LMT batteries, industrial batteries, battery lifecycle data, battery traceability, battery data governance, battery passport requirements, battery passport deadline, 18 February 2027, economic operators, battery manufacturers, battery importers, battery suppliers, battery management systems, battery state of health, battery state of charge, battery repurposing, battery remanufacturing, battery recycling, circular economy, battery due diligence, battery carbon footprint, recycled content, QR code compliance, DPP Registry, battery passport interoperability, battery passport cybersecurity, products with digital elements, CRA compliance, vulnerability management, cybersecurity risk assessment, software bill of materials, SBOM, battery data access rights, legitimate interest, battery passport service providers, EU battery regulation

An evidence-based guide to the European Union’s digital battery passport, explaining which batteries and organisations are affected, what each participant must prepare, and when the principal obligations take effect.

A compliance deadline that reorganises the battery value chain

The digital battery passport is sometimes described as a label that becomes visible when a user scans a QR code. That description identifies the interface but not the regulated system. The QR code links the physical battery to a unique identifier. Behind it must sit an electronic record containing model-level and individual-battery information that is accurate, complete, current, machine-readable, structured, searchable, interoperable, and available according to the requester’s access rights.1

The principal obligation begins on 18 February 2027. From that date, each electric-vehicle battery, each light-means-of-transport battery, and each industrial battery with a capacity greater than 2 kWh that is placed on the European Union market or put into service must have a battery passport. The European Commission describes these batteries as the first product group for which the broader EU digital-product-passport framework becomes mandatory.2

The economic operator placing the finished battery on the market must ensure that the passport information is accurate, complete, and up to date. The operator may authorise another party to perform work on its behalf, but the legal responsibility does not disappear merely because a supplier, software provider, consultant, or overseas manufacturer creates or hosts the data.3

The practical impact is therefore wider than the organisation formally accountable for the passport. Upstream suppliers hold information about materials, cells, modules, manufacturing sites, recycled content, and carbon-footprint inputs. Manufacturers hold product-design, performance, conformity, and traceability records. Battery-management and service systems generate information about use and condition. Repairers and second-life operators need controlled access to dismantling, condition, and predecessor information. Waste operators and recyclers require data that support safe treatment and material recovery.

The central implementation problem is not how to print a QR code. It is how to maintain a defensible chain of responsibility from upstream evidence to an individual battery, while preserving identity, provenance, access control, lifecycle updates, continuity, and regulatory accountability.

Which batteries and market actors are in scope

Scope has two independent dimensions. First, the battery must fall within one of the categories covered by Article 77. Second, a legally relevant event—placing the battery on the Union market or putting it into service—must occur on or after 18 February 2027.4

Three battery categories require passports

Battery category Passport requirement from 18 February 2027 Principal boundary
Electric-vehicle battery Required for each battery in the category No separate capacity threshold
Light-means-of-transport battery Required for each battery in the category No separate capacity threshold
Industrial battery Required where capacity is greater than 2 kWh The 2 kWh threshold applies only to industrial batteries
Portable battery No Article 77 passport solely because it is portable Other labelling and QR-code requirements may still apply
Starting, lighting and ignition battery No Article 77 passport solely because it is an SLI battery Other regulatory information remains applicable
Industrial battery of 2 kWh or less Outside the Article 77 passport threshold Other provisions of the Batteries Regulation still apply
Table 1: Product scope of the EU battery-passport requirement.

A light-means-of-transport battery is a sealed traction battery weighing 25 kg or less, designed for a wheeled vehicle powered by an electric motor alone or by a combination of motor and human power, and not classified as an electric-vehicle battery. E-bike and e-scooter batteries are familiar examples.5

An electric-vehicle battery is defined by the vehicle for which it is designed. It includes traction batteries for hybrid or electric vehicles in categories M, N, and O, and qualifying category-L batteries weighing more than 25 kg. The weight condition helps separate some category-L batteries from the light-means-of-transport category; it is not a general minimum capacity or weight for electric-car batteries.

The industrial category is broader than ordinary commercial usage of the word industrial. It includes batteries designed for industrial use, batteries intended for industrial use after repurposing, and other batteries weighing more than 5 kg that do not fall into the electric-vehicle, light-means-of-transport, or starting-lighting-and-ignition categories. A stationary battery energy-storage system is expressly an industrial battery. Residential and commercial storage products can therefore fall within the passport requirement when their capacity exceeds 2 kWh.

The passport requirement should not be confused with the general QR-code requirement. From 18 February 2027, all batteries must bear a QR code, but only the three categories in Table 1 use that code to provide access to an Article 77 battery passport. For other batteries, the code provides access to the other information specified by Article 13.6

Incorporation into another product does not remove the battery from scope

The Batteries Regulation applies to batteries sold separately and to batteries incorporated into, added to, or designed to be incorporated into other products. A vehicle manufacturer, machinery producer, appliance supplier, or storage-system integrator cannot therefore treat the passport as irrelevant merely because the customer purchases a larger product rather than a separately packaged battery.

A cell or module supplier is not automatically responsible for the finished-battery passport. The decisive product boundary is whether the supplied object remains a component for further assembly or is itself supplied for end use as the regulated battery. Suppliers of cells and modules must nevertheless provide manufacturers, free of charge, with the information and documentation needed to comply with the Regulation.7

The trigger is first Union placement or first Union use

“Placing on the market” means the first making available of a battery on the Union market. “Making available” includes any commercial supply for distribution or use, whether paid or free. A later distributor sale may therefore be a making-available event without being a new placing-on-the-market event.

“Putting into service” captures the first use of a battery for its intended purpose in the Union where the battery has not previously been placed on the market. It covers, for example, batteries manufactured for an operator’s own use and systems assembled or first tested at their final installation site.

The relevant event is therefore not necessarily the retail sale date. It may be an import, a business-to-business supply, incorporation into a vehicle or system, a free commercial transfer, or first internal use.

What the passport must contain and who may access it

The battery passport is not one public datasheet. It is a structured record containing several information layers. Some fields describe a battery model and may be reused across all batteries sharing that model. Other fields describe one physical battery and change as it is used, repaired, repurposed, remanufactured, or becomes waste.8

Model information and individual information serve different purposes

Dimension Model-level information Individual-battery information
Object described A defined battery design or model One uniquely identified physical battery
Typical behaviour Relatively stable until design, evidence, plant, or declaration changes Evolves during operation and lifecycle transitions
Examples Chemistry, composition, rated capacity, voltage, expected lifetime, dismantling information, conformity evidence State of health, lifecycle status, cycle count, negative events, operating temperature, state of charge
Main source systems Engineering, compliance, manufacturing, sustainability, and supplier records Battery-management, service, inspection, and lifecycle systems
Principal use Product transparency, conformity, repair, dismantling, and circularity Residual-value assessment, further use, repurposing, remanufacturing, and recycling
Table 3: Difference between model-level and individual-battery information.

A static product page containing only model characteristics would therefore be incomplete. Article 77 expressly requires both model information and information specific to the individual battery, including information resulting from use.

Public information

The public layer includes general identification and manufacturing information, battery category and model identification, place and date of manufacture, weight, capacity, chemistry, specified hazardous substances, critical raw materials, and usable extinguishing agents.

It also includes applicable sustainability and circularity information, such as material composition, carbon-footprint information, responsible-sourcing information, recycled content, and renewable content. These fields enter the passport only to the extent that the underlying requirement applies to the relevant battery category, subcategory, plant, or date.

Public technical information includes rated capacity; minimum, nominal, and maximum voltage; original power capability; expected lifetime in cycles and the reference test; applicable temperature limits; warranty duration; initial and mid-life round-trip efficiency; internal cell and pack resistance; and the test rate used for the relevant cycle-life assessment. The public layer also includes applicable markings, the EU declaration of conformity, and information concerning waste prevention and management.9

Restricted model and conformity information

Restricted model information includes detailed cathode, anode, and electrolyte composition; component part numbers and replacement-spare sources; exploded diagrams; cell layout; disassembly sequences; fastener types; required tools; warnings; and safety measures.

These fields are relevant to repairers, remanufacturers, second-life operators, and recyclers, but they may also expose commercially sensitive engineering and supplier information. Access must therefore be purpose-limited rather than universal.

A separate restricted layer contains test-report results used to prove compliance. Those results are accessible to notified bodies, market-surveillance authorities, and the Commission rather than to every commercial user.

Individual operating and lifecycle information

The individual-battery layer includes:

  • performance and durability values at initial placement and when lifecycle status changes;
  • state-of-health information;
  • whether the battery is original, repurposed, re-used, remanufactured, or waste;
  • numbers of charging and discharging cycles;
  • negative events, including accidents;
  • periodically recorded operating conditions, including temperature; and
  • periodically recorded state of charge.

A battery’s state of health describes its general condition and ability to deliver specified performance compared with its initial condition. State of charge describes the currently available energy as a percentage of rated capacity. The two values answer different questions and should not be treated as interchangeable.

Access is differentiated

Information layer Examples Principal access class
Public model information Identity, composition, sustainability declarations, declared performance, conformity declaration, waste information General public
Restricted model information Detailed composition, spare-part sources, dismantling diagrams, tools, cell layout, safety measures Commission and qualifying persons with a legitimate interest
Regulatory conformity evidence Results of compliance test reports Notified bodies, market-surveillance authorities, and Commission
Individual-battery information State of health, status, cycles, accidents, temperature, state of charge Qualifying persons with a legitimate interest
Table 4: Statutory access classes for battery-passport information.

“Legitimate interest” is not a general commercial entitlement to the complete record. Article 77 requires the Commission to specify which persons qualify, which fields they may access, and the extent to which information may be downloaded, shared, published, or reused. The statutory criteria include necessity for residual-value assessment, further use, repair, repurposing, remanufacturing, recycling, or specified energy-market activity, combined with minimisation of commercially sensitive disclosure.10

As of 18 July 2026, that implementing act had not yet been adopted. The Regulation requires adoption by 18 August 2026. Organisations could therefore design the underlying role-based architecture, but the final person-by-field authorisation matrix remained an open implementation item.11

Access rights must be technically enforced

The passport must provide free access according to the requester’s rights. Permissions to read, introduce, modify, or update data must be restricted. The system must also support authentication, reliability, integrity, security, privacy, fraud prevention, open standards, interoperability, machine readability, structure, searchability, and transfer without vendor lock-in.12

Each field should therefore be classified along at least six dimensions:

  1. legal basis;
  2. applicability to the battery category and date;
  3. model, batch, or item granularity;
  4. public or restricted access class;
  5. authoritative data source; and
  6. creation and update trigger.

BatteryPass-Ready’s data-attribute longlist is useful implementation guidance because it consolidates regulatory, technical, and recommended attributes. It is not itself legislation, and it explicitly contains suggested as well as mandatory fields. Implementers should trace every production field to its legal, standardisation, or voluntary basis.13

Who must supply, verify, host, and update the data

The Regulation separates four functions that organisations often confuse: originating information, validating evidence, operating the technical record, and bearing legal responsibility. The economic operator placing the finished battery on the market remains responsible for accuracy, completeness, and currency, even where other organisations perform the work.14

A data originator is the actor or system closest to the measurement, declaration, calculation, or lifecycle event. A material supplier may originate composition data; a manufacturing system may originate place and date information; a battery-management system may originate temperature or cycle information; and a repairer may originate a service event. The passport-responsible operator must decide whether the evidence is sufficient and approve its use.

Actor Principal contribution Responsibility boundary
Material, cell, and module suppliers Supply composition, manufacturing, sustainability, and technical evidence Providing evidence does not normally create responsibility for the finished passport
Battery or pack manufacturer Generate design, performance, conformity, production, and item-traceability records Becomes responsible where it performs the relevant market placement or first use
Vehicle, equipment, or storage-system manufacturer Integrate battery records with the finished product and market pathway Must determine whether it places the incorporated battery on the market
Importer or private-label operator Obtain, evaluate, and maintain evidence from non-EU suppliers Cannot rely on an overseas database as a substitute for its own responsibility
Sustainability and compliance functions Produce calculations, declarations, due-diligence information, and conformity evidence Specialist work supports but does not replace passport accountability
Passport or cloud provider Host records, provide interfaces, enforce access, and maintain availability Technical outsourcing does not transfer responsibility for data correctness
Repairer or service operator Produce authorised service events and condition information May change only fields for which it has authority
Repurposer or remanufacturer Assess the altered battery and create a linked successor passport Becomes responsible when placing the altered battery on the market or putting it into service
Producer, producer responsibility organisation, or selected waste operator Assume responsibility when the battery becomes waste under Article 77(7) Must preserve and update the record during the relevant waste stage
Recycler Complete end-of-life treatment The passport ceases after recycling
Table 5: Allocation of data-generation and accountability functions.

Supplier information must be evidential, not merely available

Article 39 requires suppliers of cells and modules to provide manufacturers, free of charge, with the information and documentation necessary for compliance. Many required fields nevertheless originate further upstream, particularly material composition, recycled-content evidence, carbon-footprint inputs, and responsible-sourcing information.

A defensible supplier submission should identify:

  • the model, plant, batch, component, or battery to which it applies;
  • the unit, method, and reporting period;
  • the originating organisation and source system;
  • the supporting declaration, test, calculation, or assurance evidence;
  • the date and version;
  • conditions under which the value remains valid; and
  • the process for notifying and correcting errors or production changes.

Supplier contracts should address data-use rights, permitted disclosure, correction duties, retention, audit cooperation, change notification, evidence access, and support during market-surveillance or lifecycle investigations.

Verification occurs at several layers

Source verification confirms that the supplier, document, laboratory, or system is authentic. Identity verification confirms that the evidence belongs to the correct model, plant, batch, or item. Transformation verification checks calculations, aggregation, allocation, and unit conversion. Semantic verification checks structure, vocabulary, datatype, and unit. Approval verification records which authorised person or system accepted the value for publication.

A passport can pass one layer and fail another. A correctly formatted carbon-footprint value may belong to another manufacturing plant. A genuine supplier declaration may be associated with the wrong battery model. A plausible state-of-health estimate may rely on an undocumented algorithm.

No general rule requires independent certification of every passport field. Some values are subject to conformity-assessment or verification requirements elsewhere in the Batteries Regulation; others remain under the responsible operator’s internal control and potential market-surveillance review. Battery Pass guidance usefully distinguishes statutory conformity assessment from additional assurance that companies may apply to increase trust in data.15

Hosting and registry registration are different functions

The detailed battery information follows a decentralised architecture. It remains under the responsibility of the relevant operator and may be hosted directly or through an authorised service provider. A provider processing the data may not sell, reuse, or process it beyond what is necessary to provide the service. The passport must remain available even if the responsible operator ceases to exist or ceases activity in the Union.16

The EU DPP Registry is an indexing and verification layer rather than a central repository of every detailed passport field. It stores identifiers, registration data, and high-level metadata; provides interfaces for registration; supports verification and logging; and maintains common semantic resources.17

Commission Implementing Regulation (EU) 2026/1778 requires registration through a secure interface or application programming interface. The registry automatically checks matters such as semantic conformity, granularity, identifier coherence, relevant commodity codes, and applicable backup links. It then generates a persistent registration identifier and proof of registration.

Those automated checks are not a substantive certification of the battery’s claims. The implementing regulation expressly leaves the factual correctness of registered information to the responsible operator and market-surveillance framework.

Figure 1 separates source evidence, passport operation, registry registration, and lifecycle succession.

%%{init: {"theme": "neo", "look": "handDrawn", "layout": "elk"}}%%
flowchart TD
    A[Material, cell, and module suppliers<br/>source evidence] --> B[Manufacturer and OEM systems<br/>engineering, manufacturing, compliance]
    B --> C[Responsible economic operator<br/>approve, publish, maintain]
    D[Battery-management and service systems<br/>condition and lifecycle events] --> C

    C --> E[Decentralised passport store<br/>operator or authorised provider]
    E --> F[QR code and unique identifier<br/>role-based access]
    C --> G[EU DPP Registry<br/>identifiers and registration data]

    C --> H[Repurposer or remanufacturer<br/>new linked passport]
    H --> I[Waste-stage responsible actor<br/>producer, PRO, or selected operator]
    I --> J[Recycling completed<br/>passport ceases]
Figure 1: Information and responsibility flow from upstream evidence to the decentralised passport, EU registry, and successor lifecycle operators.

Updates must follow the event and the authorised role

Model information may change because of a corrected declaration, changed supplier, revised manufacturing process, new plant, design modification, or updated conformity evidence. Individual-battery information changes through operation, inspection, accidents, repair, state-of-health estimation, repurposing, remanufacturing, or transition to waste.

The system should preserve the previous value, timestamp the change, identify its origin, and state whether the value was measured, declared, calculated, or estimated.

Event Required response
Supplier corrects evidence Identify affected batteries or models, approve the correction, version the field, and preserve provenance
Design or manufacturing characteristics change Decide whether to update the model record or create a new model identity
Battery-management system produces new data Introduce values through an authorised interface with item identity, timestamp, and method
Repair changes condition information Record the service event and update only authorised individual fields
Repurposing or remanufacturing leads to renewed placement or use Transfer responsibility and create a new passport linked to the predecessor passport or passports
Battery becomes waste Transfer responsibility to the actor specified by Article 77(7)
Recycling is completed End the passport
Table 6: Principal battery-passport update and responsibility-transfer events.

The Regulatory Timeline from July 2026 to February 2027

The timetable contains different kinds of milestones. Adoption of a standard does not start the product obligation. Publication of registry rules does not make passports mandatory immediately. The decisive product-compliance date remains 18 February 2027.

Six harmonised standards were cited on 15 July 2026

Commission Implementing Decision (EU) 2026/1736 cited six harmonised European standards for the common DPP system.18

Standard Subject
EN 18216:2026 Data-exchange protocols
EN 18219:2026 Unique identifiers
EN 18220:2026 Data carriers
EN 18221:2026 Data storage, archiving, and persistence
EN 18222:2026 APIs for lifecycle management and searchability
EN 18223:2026 System interoperability
Table 7: Harmonised DPP standards cited on 15 July 2026.

Conformity with a cited harmonised standard creates a presumption of conformity only for the requirements that the standard covers. It does not prove that a composition declaration, carbon-footprint value, state-of-health estimate, or other substantive claim is factually correct.

Registry rules were published on 17 July 2026

Commission Implementing Regulation (EU) 2026/1778 was adopted on 16 July and published on 17 July 2026. It establishes registry verification, actor onboarding, user-interface and API registration, automated checks, registration identifiers, evidence of registration, versioning, logging, semantic resources, and responsibilities.19

The regulation enters into force on the twentieth day following publication, 6 August 2026. The Commission’s battery and registry pages listed 20 July 2026 as the planned date on which the registry, testing environment, and user guidance would become operational. As this article is dated 18 July 2026, that operational milestone had not yet occurred.20

Access rules remained pending

Article 77 requires the Commission to adopt the legitimate-interest implementing act by 18 August 2026. As of 18 July, Commission webinar material still described the access-rights work as under development.21

Mandatory cutover is 18 February 2027

From 18 February 2027, an in-scope battery placed on the Union market or put into service must have its passport. The battery’s unique identifier must also be uploaded to the DPP Registry under the amended Article 77 framework.22

The passport date does not automatically accelerate every underlying sustainability obligation. Carbon-footprint declarations, recycled-content information, due-diligence disclosures, and related fields enter the passport to the extent that their separate legal requirements apply to the relevant battery category and date.

Date Milestone Practical consequence
15 July 2026 Six harmonised DPP standards cited Recognised technical conformity route becomes available for covered requirements
17 July 2026 Registry implementing regulation published Final registry operating rules become available
20 July 2026 Planned registry and testing-environment launch Operators and providers can begin using the Commission infrastructure
6 August 2026 Registry regulation enters into force Implementing Regulation (EU) 2026/1778 becomes directly applicable
18 August 2026 Statutory deadline for legitimate-interest rules Restricted-access categories and reuse permissions are to be specified
18 February 2027 Battery passport becomes mandatory Each newly placed or commissioned in-scope battery must have a passport and registry entry
After placement Lifecycle obligations continue Information must be updated and responsibility transferred where applicable
Table 8: Principal implementation milestones as understood on 18 July 2026.

Operational readiness: a role-by-role action plan

Only 18 February 2027 is the universal statutory product cutover in the schedule below. The intermediate dates are recommended management targets derived by working backward from that obligation. They are not additional legal deadlines.

Readiness should be assessed per battery model and commercial pathway. A company may be ready for a domestically manufactured model but unready for an imported model because the supplier chain, responsible operator, plant evidence, identifier process, or passport interfaces differ.

Establish one governed programme

The accountable operator should appoint a programme owner with authority across regulatory compliance, engineering, manufacturing, procurement, sustainability, information technology, cybersecurity, legal affairs, service, logistics, and end-of-life operations.

The programme should maintain six controlled artefacts:

  1. an inventory of batteries, models, plants, and market pathways;
  2. a field-level passport data dictionary;
  3. a responsibility and approval matrix;
  4. an architecture and interface specification;
  5. a lifecycle-event and responsibility-transfer procedure; and
  6. a model-by-model production-readiness record.

The data dictionary should record the legal basis, applicability, granularity, data type, unit, source, evidence owner, transformation method, approver, access class, update trigger, retention rule, and destination for every field.

Role-based work packages

Role Required work Evidence of readiness Recommended target
Executive sponsor and programme owner Approve scope, accountability, funding, governance, escalation, and release controls Programme mandate and readiness dashboard 31 August 2026
Regulatory and legal team Classify batteries, identify relevant market events and operators, and monitor secondary acts Approved scope decisions and obligations register Initial decisions by 31 August 2026
Engineering and product-lifecycle-management team Define models, specifications, composition, performance, and dismantling records Approved model data and engineering evidence 30 September 2026
Manufacturing and quality team Link plants, dates, batches, serialised items, identifiers, and conformity records Physical-to-digital traceability test Pilot by 31 October 2026
Procurement and supplier-management team Amend contracts, obtain structured evidence, and establish correction processes Supplier coverage and evidence-quality report Priority suppliers by 30 September; full coverage by 30 November 2026
Sustainability and compliance team Prepare applicable footprint, recycled-content, sourcing, and conformity information Versioned declarations and applicability decisions Integration tested by 30 November 2026
IT and data-architecture team Implement passport storage, semantics, interfaces, QR resolution, registry integration, and versioning End-to-end technical test Production-ready by 31 January 2027
Cybersecurity and identity team Implement authentication, least privilege, logging, integrity, incident response, and credential controls Access testing and security assurance 31 January 2027
Service provider Demonstrate interoperability, continuity, recovery, export, and prohibited-use controls Recovery, export, and exit tests Contracted by 30 September; tested by 31 December 2026
Import, logistics, and customs team Prevent release of batteries lacking valid passports, identifiers, and registration Shipment-release and blocking test 31 December 2026
Repair and field-service team Define authorised service events, methods, evidence, and updates Service-to-passport integration test 31 January 2027
Repurposing and remanufacturing team Create predecessor-link, successor-identity, testing, and responsibility procedures Demonstrated linked successor passport 31 January 2027
Waste-management team Define waste-status transfer and recycling closure Transfer and termination procedure 31 January 2027
Audit or assurance function Test completeness, lineage, access separation, continuity, and release controls Findings report with critical issues resolved 31 January 2027
Table 9: Role-based battery-passport readiness plan.

Convert supplier contracts into data contracts

Procurement should issue field-specific requirements rather than ask suppliers generally for “battery passport data.” Each critical submission should be tested through the complete cycle: ingestion, semantic validation, association with the correct model or batch, evidence review, rejection, correction, approval, and publication.

Contracts should cover permitted use, public and restricted disclosure, traceability, formats, retention, change notification, historical correction, market-surveillance cooperation, cybersecurity, and continuity.

Distinguish missing, inapplicable, and restricted information

The data model should distinguish:

  • not applicable: the requirement does not apply;
  • not yet applicable: the requirement starts at a later date;
  • unavailable: required information has not been obtained;
  • unknown: the value cannot presently be determined;
  • restricted: the value exists but is not available to the requester.

Using one blank or null state for all five conditions prevents reliable compliance checks and misleads passport users.

Prove portability and continuity

Technology providers should demonstrate more than a working public webpage. The operator should test data export, backup restoration, migration to an alternative environment, credential rotation, administrator revocation, recovery from provider unavailability, and continued resolution of existing QR codes.

A backup is insufficient if it preserves values but loses identifiers, permissions, predecessor links, version history, or audit records.

Rehearse the entire pathway

Implementation window Required outcome
July–August 2026 Scope, accountable operator, battery inventory, and preliminary field dictionary approved
September 2026 Supplier contracts, provider arrangements, identity model, and architecture established
October–November 2026 Source integration, passport generation, QR resolution, registry connection, and access controls tested
December 2026 Representative pilots completed for manufacture, import, incorporated batteries, repair, and second life
January 2027 Coverage gaps closed; continuity, recovery, security, export, and audit tests completed
1–17 February 2027 Production configuration frozen; release controls activated; unresolved batteries blocked
From 18 February 2027 Each in-scope battery released only after successful passport and registration checks
Thereafter Corrections versioned, access governed, lifecycle events recorded, and successor transfers completed
Table 10: Recommended implementation schedule working backward from the mandatory date.

The final rehearsal should begin with a physical battery and end with a correct QR result, appropriate public and restricted views, denial of unauthorised access, successful registration, retrievable evidence, a simulated correction, and a demonstrated lifecycle update.

Open implementation questions and compliance risks

The remaining uncertainty concerns implementation detail rather than the existence of the obligation. Product scope, passport content, principal responsibility, differentiated access, the unique identifier, and the February 2027 date are already established.

Restricted-access rules were still incomplete

The pending Article 77(9) act creates two opposing risks. Over-disclosure may expose detailed composition, supplier, dismantling, safety, or operating data. Under-disclosure may prevent a legitimate repairer, second-life operator, recycler, purchaser, or energy-market participant from exercising a permitted right.

Access policy should therefore be configurable and separate from the stored content. The system should support identity verification, purpose-specific access, field-level permissions, logging, revocation, and distinct rules for viewing, downloading, sharing, publishing, and reuse.

Structural conformity is not factual correctness

A passport may use the correct schema, identifier, API, and vocabulary while containing a value associated with the wrong plant, supplier batch, model, or battery. Registry acceptance proves that specified registration checks succeeded; it does not establish that every claim is true.

Validation layer Question
Structural Are required elements present and correctly formatted?
Semantic Do the values use the expected terms, units, and meanings?
Identity Do the records belong to the correct model, batch, plant, or item?
Evidential Is the value supported by an appropriate declaration, test, calculation, or source record?
Substantive Is the claim factually correct under the applicable method and conditions?
Table 11: Distinct validation layers for battery-passport data.

Dynamic information can create false precision

State-of-health, internal-resistance, temperature, cycle-count, and related values depend on sensors, battery-management logic, sampling frequency, calibration, operating conditions, and estimation algorithms. Two passports may report the same numerical state of health while referring to different methods or reference conditions.

The operator should therefore preserve method provenance: whether the value was measured or estimated, the method or algorithm, software version, reference conditions, timestamp, source system, and relevant quality flag.

The passport should also distinguish an instantaneous value from a period aggregate, a nominal condition from an observed condition, and a manufacturer estimate from a later independent assessment.

Provider concentration creates continuity risk

Dependency Potential failure
Passport hosting Existing QR codes stop resolving
Identifier service New batteries cannot receive valid identities
Registry integration Product release is blocked
Access-control service Restricted information is exposed or legitimate access fails
Semantic mapping Source data are mistransformed or rejected
Cryptographic credentials The responsible operator loses update control
Proprietary lifecycle model History cannot be migrated without loss
Table 12: Principal service-provider dependencies.

Continuity planning must preserve the regulatory function of the passport, not only a copy of its data.

Lifecycle classification determines responsibility

Repair, preparation for re-use, repurposing, remanufacturing, transition to waste, and recycling have different legal consequences. A repair may update the original record. Repurposing or remanufacturing followed by a new placement or first use requires a new passport linked to its predecessor or predecessors. Waste status transfers responsibility under Article 77(7), while completed recycling ends the passport.

Ownership transfer alone does not necessarily transfer passport responsibility. The trigger is the regulated lifecycle or market event, not merely a change in title.

Enforcement can interrupt market access

Member States must establish effective, proportionate, and dissuasive penalties. Market-surveillance authorities may also require corrective action, withdrawal, or recall. In practice, an incomplete passport can disrupt trade before a fine is imposed: imports may be blocked, production release may stop, or a second-life operator may be unable to demonstrate lawful lineage.23

Failure mode Principal exposure Minimum preventive control
Battery misclassified as out of scope Unregistered battery placed on the market Documented classification and capacity decision
Duplicate or incorrect identifier Loss of physical–digital traceability Uniqueness check and release-time QR test
Mandatory field missing Incomplete passport at placement Applicability-driven completeness gate
Supplier value lacks provenance Unsupported public or restricted claim Evidence linked to model, plant, batch, and version
Restricted field publicly exposed Confidentiality, security, or privacy breach Field-level access testing
Legitimate user denied Obstruction of repair, second life, or recycling Entitlement and review procedure
Dynamic value is stale or ambiguous Incorrect safety or residual-value decision Update rule, method provenance, and quality flag
Registry accepts false data False assurance Separate substantive approval
Provider becomes unavailable Passport-continuity failure Tested recovery and migration
Predecessor links are lost Broken lifecycle history Mandatory lineage validation
Waste or recycling event omitted Incorrect status and responsibility Controlled transfer and termination workflow
Table 13: Priority battery-passport compliance risks.

Where the battery passport meets the Cyber Resilience Act

The Batteries Regulation and the Cyber Resilience Act regulate different objects. The battery-passport provisions govern an electronic lifecycle record for specified batteries. The Cyber Resilience Act, or CRA, governs hardware and software products with digital elements whose intended or reasonably foreseeable use includes a direct or indirect data connection to a device or network. A battery passport does not therefore make a battery automatically subject to the CRA, and CRA compliance does not by itself satisfy the passport requirements.24

The two regimes nevertheless intersect wherever an in-scope battery contains or depends on connected digital components. Examples can include battery-management-system hardware and firmware, communications modules, diagnostic software, energy-management interfaces, mobile applications, and remote processing used for monitoring or control. The passport then records information about a battery whose digital functions may separately be subject to cybersecurity requirements.

CRA scope must be assessed separately for each digital product

A product falls within the CRA where it is a software or hardware product, including a separately marketed component, and its intended or reasonably foreseeable use involves a logical or physical data connection. A battery pack with an embedded battery-management system can therefore be a product with digital elements where the pack processes, stores, or transmits digital data and connects directly or indirectly to another device or network.25

The conclusion is not universal. Some batteries contain no relevant connected functionality. Others are incorporated into products governed by sectoral legislation that changes the CRA analysis. In particular, the CRA expressly excludes products with digital elements to which Regulation (EU) 2019/2144 on motor-vehicle type approval and general safety applies. This exclusion may be relevant to digital battery systems covered through the type-approval framework for road vehicles, but it is not a general exemption for every electric-vehicle, light-means-of-transport, or industrial battery.

Object or service Battery-passport position CRA scope question
Connected industrial battery with a networked battery-management system Passport required where capacity exceeds 2 kWh The battery or BMS can be a product with digital elements if its use includes a data connection
Connected LMT battery Passport required regardless of capacity Embedded firmware, diagnostic interfaces, or communications components may bring the relevant product within CRA scope
Electric-vehicle battery or associated digital component Passport required Determine whether the relevant product is excluded because Regulation (EU) 2019/2144 applies
Standalone BMS, gateway, diagnostic application, or firmware product May supply or update passport data Can be independently subject to the CRA when made available on the market as a connected hardware or software product
Hosted battery-passport database Operates the regulated electronic record Not automatically a CRA remote data processing solution; scope depends on its relationship to a product with digital elements
Remote battery-monitoring or control service May generate individual-battery passport information Falls within the CRA product boundary where it is developed under the manufacturer’s responsibility and its absence would prevent the connected product from performing one of its functions
QR code printed on the battery Provides access to the passport The printed carrier alone is not the relevant product with digital elements
Table 14: Product boundaries at the intersection of the battery passport and the Cyber Resilience Act.

The hosted passport system requires particular care. Under the CRA, remote data processing is included in a product with digital elements only where the remote software is designed and developed by, or under the responsibility of, the product manufacturer and its absence would prevent the product from performing one of its functions. A cloud service that merely stores the legally required passport record does not meet that definition solely because the QR code points to it. A remote service required for battery control, safety management, charging optimisation, or another product function may produce a different result.

A passport platform distributed as a software product can also fall within the CRA in its own right, independently of whether it is integral to battery operation. The relevant inquiry is therefore not whether software is described commercially as a “platform,” “service,” or “passport solution,” but whether a hardware or software product with the required connection is made available on the Union market.

The two regulations impose overlapping controls for different purposes

Article 78 of the Batteries Regulation requires restricted rights to access, introduce, modify, or update passport information; data authentication, reliability, and integrity; a high level of security and privacy; fraud avoidance; continued availability; interoperability; and protection against unauthorised secondary use by service providers.26

The CRA is broader and more prescriptive where it applies. It requires a documented cybersecurity risk assessment and risk-based security throughout planning, design, development, production, delivery, and maintenance. Its essential requirements address known exploitable vulnerabilities, secure default configurations, security updates, authentication and access management, confidentiality, integrity, data minimisation, availability, attack-surface reduction, security monitoring, secure data removal, vulnerability testing, coordinated disclosure, and secure update distribution.27

Control area Battery-passport requirement Additional CRA consequence where applicable
Identity and access Restrict reading and modification according to passport access rights Implement risk-based authentication, identity management, unauthorised-access protection, and security monitoring
Data integrity Ensure authentication, reliability, and integrity of passport information Protect data, commands, software, and configurations against unauthorised manipulation
Confidentiality Protect privacy and commercially sensitive restricted information Protect stored and transmitted data using appropriate state-of-the-art measures
Availability Keep the passport available even after the responsible operator ceases activity Protect essential product functions against incidents and denial-of-service conditions
Software dependencies Not a prescribed public passport dataset Identify components and maintain a machine-readable software bill of materials for vulnerability handling
Vulnerability management Not comprehensively regulated by Articles 77–78 Identify, document, test, remediate, disclose, and securely patch vulnerabilities throughout the support period
Portability Use open standards and avoid vendor lock-in CRA does not replace the passport’s interoperability and portability duties
Incident reporting No equivalent general cyber-incident notification process in the passport provisions Notify actively exploited vulnerabilities and severe security incidents through the CRA reporting mechanism
Table 15: Complementary security obligations under the battery-passport rules and the CRA.

The overlap permits reuse of technical controls, but not legal substitution. An access-control system designed for CRA conformity can help satisfy the passport requirement to restrict modification rights. Integrity monitoring and secure software-update mechanisms can protect the systems that generate individual-battery information. A shared incident-response process can investigate unauthorised changes to passport data and vulnerabilities in the connected battery product.

The evidence must nevertheless remain distinguishable. The battery-passport file should show that information is accurate, appropriately disclosed, interoperable, and maintained across lifecycle transfers. The CRA technical file must show that the product with digital elements underwent a cybersecurity risk assessment, meets the applicable essential cybersecurity requirements, and is supported by effective vulnerability-handling processes.

The passport is not a public CRA compliance repository

Some information needed for CRA compliance can be associated with passport identifiers without being published in the passport. The CRA requires manufacturers to identify and document software components through a machine-readable software bill of materials, but it does not require that bill of materials to become part of the public battery passport. Detailed dependency information can itself increase security risk if disclosed without an appropriate purpose and access model.

The same distinction applies to vulnerability records. A battery passport may provide stable product and model identifiers that help determine which batteries are affected by a vulnerability or security update. It should not become a public vulnerability database containing exploit-sensitive information merely because the product identifier is shared.

A defensible architecture uses the battery identifier as a controlled reference between separate records:

  • the battery passport contains the information required by Articles 77–78 and Annex XIII;
  • the CRA technical documentation contains the cybersecurity risk assessment, component and vulnerability evidence, and conformity material;
  • the vulnerability-management system records affected versions, patches, disclosure decisions, and reporting events; and
  • the service system delivers security updates and user instructions to the affected installed base.

This separation allows the organisation to preserve one consistent product identity while applying different disclosure, retention, evidentiary, and update rules.

The dates require a staged compliance programme

The battery-passport obligation begins before the CRA becomes fully applicable. The CRA’s Article 14 reporting obligations apply from 11 September 2026. The battery passport becomes mandatory on 18 February 2027. Most remaining CRA obligations apply from 11 December 2027.28

The early CRA reporting date is particularly important. From 11 September 2026, manufacturers must report actively exploited vulnerabilities and severe incidents affecting in-scope products with digital elements. The reporting obligation also applies to relevant products placed on the market before 11 December 2027. Manufacturers should therefore establish product-security contacts, escalation criteria, affected-product identification, user-notification procedures, and access to the CRA reporting platform before the battery passport enters production.

Date Battery-passport consequence CRA consequence
11 September 2026 Passport implementation is still in preparation Reporting obligations begin for actively exploited vulnerabilities and severe product-security incidents
18 February 2027 Passport becomes mandatory for newly placed or commissioned in-scope batteries CRA reporting continues where the connected battery product falls within scope
11 December 2027 Passport lifecycle and update duties continue CRA product, manufacturer, conformity, vulnerability-handling, support-period, and market-surveillance requirements become generally applicable
Table 16: Combined battery-passport and CRA implementation timeline.

The CRA support period must reflect the time during which the product is expected to be used and is normally at least five years, unless the expected use is shorter. For connected battery products expected to remain operational for longer periods, the assessment may require a correspondingly longer vulnerability-handling and security-update commitment. That commitment should be aligned with the passport’s longer lifecycle, including repair, second-life assessment, repurposing, and changes in the responsible operator.

The practical conclusion is that battery-passport security should be designed as part of the connected product’s cybersecurity architecture rather than added as a separate compliance layer. Shared identities, secure update channels, access logs, version control, incident detection, supplier vulnerability information, and continuity arrangements can support both regimes. The organisation must still maintain two explicit scope decisions and two evidence trails: one demonstrating trustworthy battery lifecycle information, and the other demonstrating the cyber resilience of the hardware, software, and remote processing through which that information is created or used.

Conclusion: treat the passport as shared infrastructure

From 18 February 2027, each electric-vehicle battery, light-means-of-transport battery, and industrial battery above 2 kWh that is newly placed on the Union market or put into service must have an individual battery passport.

The directly responsible economic operator must classify the battery, identify the relevant market event, create and maintain the passport, ensure the accuracy and applicability of its information, assign the unique identifier, provide the QR-code link, complete registry registration, enforce access rights, and preserve the record through the relevant lifecycle.

Other actors are affected because the responsible operator cannot perform those duties without them:

Who is affected What they must contribute When
Responsible manufacturer, importer, private-label operator, or other market-placing operator Passport creation, approval, registration, maintenance, and release control Before placement or first use from 18 February 2027
Material, cell, module, and component suppliers Traceable technical, composition, sustainability, and conformity evidence Early enough for validation and production integration
Vehicle, machinery, appliance, and storage-system manufacturers Incorporated-battery classification, identity, evidence, and system integration During development and production preparation
Engineering, manufacturing, sustainability, and compliance teams Model data, plant data, calculations, declarations, test evidence, and approvals Before release and whenever relevant inputs change
IT, cybersecurity, and passport providers Interoperability, identifiers, registry connection, access control, continuity, and export Tested before the February 2027 cutover
Import, logistics, and distribution functions Prevent supply of batteries lacking the required passport and registration At import, shipment, and first commercial supply
Repairers and service operators Authorised condition, service, and event updates When relevant service events occur
Repurposers and remanufacturers Testing, new configuration evidence, predecessor linkage, and successor passport Before renewed placement or first use
Waste and recycling operators Waste-status transfer, record maintenance, and final closure When the battery becomes waste and when recycling ends
Table 17: Final summary of who must act, what they must do, and when.

The practical test of readiness is not whether an organisation owns a QR-code generator or has purchased a passport platform. It is whether each battery model and market pathway can pass a controlled release decision: scope decided, responsible operator named, required fields populated, evidence available, identity validated, access enforced, registry submission successful, continuity tested, and lifecycle updates governed.

The battery passport is therefore best understood as shared infrastructure for battery information. It must preserve four properties simultaneously: identity, so that the record belongs to the correct battery; provenance, so that claims can be traced to evidence; authorisation, so that users can access or modify only what their purpose permits; and continuity, so that the record survives changes in use, ownership, operator, provider, and lifecycle status.

The February 2027 deadline is not the end of a software project. It is the beginning of a governed information lifecycle.

See also energy longforms

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Footnotes

  1. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  2. European Commission. (2026). Batteries: Digital Product Passport. Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs. Official guidance.↩︎

  3. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  4. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  5. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  6. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  7. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  8. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  9. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  10. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  11. European Commission. (2026). The EU Digital Product Passport for Batteries—Webinar 2: Latest Updates, Key Requirements and Industry Perspectives. Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs. Official event materials.↩︎

  12. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  13. BatteryPass-Ready. (2026). Battery Passport Data Attribute Longlist, version 1.3. BatteryPass-Ready. Implementation resources.↩︎

  14. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  15. Battery Pass Consortium. (2024). Conformity Assessment for Battery Passport Data. Battery Pass. Report.↩︎

  16. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  17. European Commission. (2026). Commission Implementing Regulation (EU) 2026/1778 laying down the implementation arrangements for the digital product passport registry. Official Journal of the European Union. Official text.↩︎

  18. European Commission. (2026). Commission Implementing Decision (EU) 2026/1736 on harmonised standards for digital product passports. Official Journal of the European Union. Official text.↩︎

  19. European Commission. (2026). Commission Implementing Regulation (EU) 2026/1778 laying down the implementation arrangements for the digital product passport registry. Official Journal of the European Union. Official text.↩︎

  20. European Commission. (2026). The DPP Registry. Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs. Official guidance.↩︎

  21. European Commission. (2026). The EU Digital Product Passport for Batteries—Webinar 2: Latest Updates, Key Requirements and Industry Perspectives. Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs. Official event materials.↩︎

  22. European Parliament and Council of the European Union. (2024). Regulation (EU) 2024/1781 establishing a framework for the setting of ecodesign requirements for sustainable products. Official Journal of the European Union. Official text.↩︎

  23. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  24. European Parliament and Council of the European Union. (2024). Regulation (EU) 2024/2847 on horizontal cybersecurity requirements for products with digital elements (Cyber Resilience Act), Articles 2–3. Official Journal of the European Union. Official text. (EUR-Lex)↩︎

  25. European Parliament and Council of the European Union. (2024). Regulation (EU) 2024/2847 on horizontal cybersecurity requirements for products with digital elements (Cyber Resilience Act), Articles 2–3. Official Journal of the European Union. Official text. (EUR-Lex)↩︎

  26. European Parliament and Council of the European Union. (2023). Regulation (EU) 2023/1542 concerning batteries and waste batteries, particularly Articles 3, 13, 38–45, 77–79, and Annex XIII. Official Journal of the European Union, L 191. Official text.↩︎

  27. European Parliament and Council of the European Union. (2024). Regulation (EU) 2024/2847 on horizontal cybersecurity requirements for products with digital elements (Cyber Resilience Act), Articles 13–14 and Annexes I–II. Official Journal of the European Union. Official text. (EUR-Lex)↩︎

  28. European Parliament and Council of the European Union. (2024). Regulation (EU) 2024/2847 on horizontal cybersecurity requirements for products with digital elements (Cyber Resilience Act), Articles 69 and 71. Official Journal of the European Union. Official text; European Commission. (2025). The Cyber Resilience Act—Summary of the legislative text. Directorate-General for Communications Networks, Content and Technology. Official summary. (EUR-Lex)↩︎

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Citation

BibTeX citation:
@online{montano2026,
  author = {Montano, Antonio},
  title = {The {EU} {Digital} {Battery} {Passport:} {Who} {Is}
    {Affected,} {What} {Must} {Be} {Done,} and {When}},
  date = {2026-07-18},
  url = {https://antomon.github.io/longforms/eu-digital-battery-passport-who-is-affected-what-must-be-done-and-when`/},
  langid = {en},
  abstract = {The European Union’s digital battery passport is an
    electronic record for individual electric-vehicle batteries,
    light-means-of-transport batteries, and industrial batteries with a
    capacity greater than 2 kWh. For batteries placed on the Union
    market or put into service from 18 February 2027, the passport must
    provide prescribed product, sustainability, performance, durability,
    conformity, repair, and lifecycle information through differentiated
    access rights. Although the central legal responsibility falls on
    the economic operator placing the finished battery on the market,
    compliance depends on a wider information chain. Material, cell, and
    module suppliers must provide reliable source evidence; battery and
    vehicle manufacturers must integrate and validate it; importers and
    private-label operators must determine whether they assume the
    responsible role; technical providers must support interoperable and
    durable records; and repair, repurposing, remanufacturing,
    waste-management, and recycling operators must update or succeed the
    record as the battery changes status. This article argues that the
    battery passport should be treated as governed lifecycle data
    infrastructure rather than as a QR-code or labelling project. It
    distinguishes directly regulated batteries and organisations from
    supporting participants, explains the required information and
    access structure, reconstructs the implementation timetable as it
    stood on 18 July 2026, and translates the legal framework into a
    role-based preparation plan. It also identifies areas in which
    secondary legislation, technical operation, and industry practice
    were still developing.}
}
For attribution, please cite this work as:
Montano, Antonio. 2026. “The EU Digital Battery Passport: Who Is Affected, What Must Be Done, and When.” July 18. https://antomon.github.io/longforms/eu-digital-battery-passport-who-is-affected-what-must-be-done-and-when`/.