Hoken Pass
← Back to Blog
Battery Passports and the Second-Life Gap: What to Fix Before 18 February 2027
eu-regulations

Battery Passports and the Second-Life Gap: What to Fix Before 18 February 2027

Battery passports become mandatory on 18 February 2027, but the batteries that will supply second-life storage for the next decade are already on the road without one. This guide explains the three gaps that could push good batteries to premature recycling and how to make second-life data verifiable.

From 18 February 2027 no battery above 2 kWh can be placed on the EU market without a digital battery passport. Each battery will carry a QR code linked to a unique identifier and an electronic record of roughly eighty data points covering chemistry, capacity, carbon footprint, supply chain due diligence and performance over time. The rule sits in Article 77 of Regulation (EU) 2023/1542 and applies to electric vehicle batteries, batteries for light means of transport and industrial batteries above 2 kWh.

That deadline is fixed. The batteries that will supply second-life storage for the next ten years are already on the road, and they will never have a passport. That mismatch is the second-life gap described this week by Hidde Huijssoon, Circular Economy Sourcing Lead at modual AG, in Auto Recycling World. The same week, DPP-Flash launched an AI platform in Germany that creates a compliant passport in five minutes for SMEs. One story shows how easy creation can be. The other shows why creation alone does not make battery circularity work.

This guide connects both signals, maps the EU timeline, and lists what a small operator and a second-life buyer can do now.

The EU timeline that frames the gap

The EU Digital Product Passport Registry went live for users on 20 July 2026 under Article 13 of the Ecodesign for Sustainable Products Regulation (ESPR). The registry stores the unique identifier and registration data and points to the passport data that the economic operator hosts. It does not create the passport for you. The General DPP page on single-market-economy.ec.europa.eu lists batteries as first mandatory category, then iron and steel and construction products, with textiles later through delegated acts.

For batteries, the passport is the data layer of the wider Batteries Regulation. A delegated act due by 18 August 2026 will set access rights and rules for introducing and updating passport data. Harmonised standards work for the DPP is running in parallel through CEN-CENELEC JTC 24, with eight core standards expected by mid 2026. For the registry itself, Implementing Regulation (EU) 2026/1778 adopted 16 July 2026 and in force 6 August 2026 defines operator verification via eIDAS and the automated completeness check.

What matters for second life: the passport becomes mandatory at first placing on the market, and repurposing counts as placing on the market. Whoever gives a pack its second life becomes the economic operator with the full passport obligation.

Battery passport second-life gap: the three risks

Auto Recycling World frames three gaps that together decide whether the battery passport helps second life or pushes good batteries into early recycling.

1. Fixed costs that do not scale down

A five person dismantler and a large OEM need the same data systems and the same hosting obligation. The regulation was written as if the operator is a large manufacturer, but used EV batteries surface first at garages and dismantlers. The cost is fixed. Without shared infrastructure or an accredited service provider that spreads the cost across many operators, batteries drift to channels the passport was designed to close.

2. Legacy packs that will never have a passport

Nothing already on the road will ever get a battery passport. Yet the packs that will feed reuse until 2035 are precisely that pre-2027 generation. Assessing them today means per pack testing. That works for tens of packs, not for millions. When undocumented packs arrive at scale, proving remaining value costs more than the pack is worth. Good packs get recycled early or lost.

The scale is not small. BSI notes that global EV sales passed 23 million in H1 2026, the fleet passed 116 million, and more than 300 GWh of EV batteries, about 4.6 million packs, could retire by 2035 with 70 to 80 percent capacity left. MDPI estimates 352 GWh of cumulative second-life capacity by 2030, with Europe at 84 GWh. SolarPower Europe sees second-life batteries covering 14 GWh of 78 GWh of new ESS in Europe by 2028.

3. A moving target

The Batteries Regulation is a framework, not a finished manual. Circuland counts more than 50 delegated and implementing acts through 2026 to set carbon footprint methods, recycled content, performance thresholds and access rights. Companies building now and rebuilding later pay twice. Smaller companies pay most.

Why data completeness decides second life, not AI speed

DPP-Flash, founded by Nico Bergstreiser and Julian Gräfen in Kall, Germany, launched 14 September 2026 with a clear pitch for SMEs: upload PDFs and technical sheets, AI extracts structured data in seconds, checks for missing fields, contacts the relevant supplier automatically, and generates a dynamic QR code with 15 years of revision proof DSGVO compliant hosting, GS1 and JSON-LD ready. A pilot for 20 companies is open now, subscriptions to follow.

That solves the creation bottleneck for SMEs. The second-life test is different. A second-life operator does not need faster creation. It needs trustworthy and updatable data after first life: state of health that can be compared, usage history, composition, dismantling instructions, and access under legitimate interest. Patsnap Eureka analysis of the battery passport technology landscape puts the root failure as data completeness from Tier 2 and lower suppliers, not accuracy. BASF response is a Validation Engine that checks completeness against the data model before ingestion.

The Recirculate project, an EU and Switzerland funded collaboration of 11 partners including EURECAT and Minespider, demonstrated in April 2026 a full chain: EURECAT health models that assess safety and remaining useful life in minutes without full cycles, Minespider digital battery passport and the Recircle.market marketplace to trade verified packs. The outcome was not a new cell chemistry. It was trusted data across the chain.

What to do before 18 February 2027

Two audiences need a plan.

If you place batteries on the market, even small volumes

  1. Choose a hosted passport model that covers creation, completeness checks and 15 year archiving, so fixed costs do not stay fixed. The EU DPP Registry requires eIDAS verification for registration, qualified electronic signature for sole traders and qualified electronic seal for companies, and a resolvable identifier such as GS1 Digital Link. Make that the baseline, not the add on.
  2. Pair a qualified eIDAS timestamp with a blockchain anchor per version. The timestamp gives legal presumption of time and integrity under Article 41 of eIDAS. The anchor gives an immutable audit trail any counterparty can verify without trusting your system. Hoken Pass uses both for that reason, and keeps personal data off chain with hashes on chain for GDPR.
  3. Map supplier data now. Start with one product, prove completeness, then scale. If you wait for the delegated act on access rights due by 18 August 2026 to be final, you build twice.

If you buy for second life, reuse or recycling

  1. Ask for dynamic data access, not just static sheets. Rated capacity and chemistry do not tell you whether a pack fits stationary storage. State of health history, charge cycles and thermal history do.
  2. Require standardised disassembly and test data. The BSI checklist for repurposing cites UL 1974 for process, UL 1973 and UL 9540 for systems, plus transport rules. The passport should carry or link that evidence.
  3. Plan for legacy packs. For pre-2027 batteries, a retrofit passport built from test data and OEM state of health logs is the bridge. The Recirculate marketplace model and a standard health assessment in minutes show how to keep proof costs below pack value.

Battery passport second life is a data infrastructure project

The passport is an information tool, not a redesign of the battery. Its value for second life is better pricing, safer disassembly, and less waste. The risk, as Huijssoon notes, is transparency legislation that prices out the actors closest to the batteries.

Closing the gap needs three practical moves that the regulation already allows: shared passport infrastructure or accredited service providers to spread fixed costs, a retrofit path for legacy packs plus standard access to OEM health data, and technical rules published early enough to build once. The DPP Registry live since 20 July 2026 and the eIDAS identity layer are the rails. Verifiable data is the cargo.

Build one passport end to end before the deadline, timestamp every version, anchor each hash, and you are ready for first life and useful for second life.

Frequently asked questions

When does the battery passport become mandatory? From 18 February 2027 for electric vehicle, light means of transport and industrial batteries above 2 kWh placed or put into service on the EU market, under Article 77 of Regulation (EU) 2023/1542.

Does the EU Digital Product Passport require blockchain? No. ESPR requires authentic, tamper evident and verifiable data. A qualified eIDAS timestamp carries legal presumption. Blockchain is an optional but valuable audit layer for version history.

What is the second-life gap? Batteries already on the road before February 2027 will never have a passport, yet they will supply second-life markets until 2035. Without retrofit data or standard health logs, proving remaining value costs more than the pack is worth, so healthy batteries risk premature recycling.

What data does a battery passport hold for second life? Static data such as chemistry and carbon footprint, plus dynamic data such as state of health, performance history and dismantling instructions. Access is tiered: public data, legitimate interest data for repairers and second-life operators, and regulator data.

How can a small dismantler or garage comply without building a full system? Use a hosted service provider that covers structured data, the QR code, hosting and the export files for the EU DPP Registry, with a qualified eIDAS timestamp. That spreads fixed costs and avoids rebuilding when delegated acts land. Hoken Pass is digital product passport software for SMEs built for this case.

What should a second-life buyer ask for before buying a used pack? Ask for verifiable state of health history, usage history, standardised disassembly instructions, and tiered access credentials. If the pack is pre-2027, ask for a retrofit passport built from test data that the seller timestamps.

Sources

Free ESPR compliance checklist → https://www.hokenpass.com/resources/espr-compliance-checklist Start free - https://www.hokenpass.com