EU Battery Passports: Can Your Suppliers Provide Their Data?
EU battery passports become mandatory in February 2027. Most of the required data does not live in your systems. Here is what SME manufacturers need to do now.
EU Battery Passports: Can Your Suppliers Provide Their Data?
You are responsible for data you do not own.
That is the core message of a recent Lexology analysis on the EU Batteries Regulation. With battery passports mandatory from 18 February 2027, manufacturers face a deadline that is not about building a new IT system. It is about securing access to data that lives somewhere else entirely.
The data problem is not a technology problem
The battery passport for an EV, LMT, or industrial battery above 2 kWh requires 51 data points on day one. That includes chemistry and critical raw materials, recycled content, carbon footprint indicators, and supply chain due diligence records. We covered the exact breakdown in a previous post.
Here is the catch most SMEs miss: most of that data does not originate in your systems. It comes from your cell supplier, your material processor, your recycling partner. The Lexology analysis puts it bluntly: businesses have only months to "secure evidence and pursue suppliers" before they become accountable for data they may not control.
If you are a small or mid-sized battery manufacturer, the practical question is: where do I even find this data, and what happens if my supplier does not have it in a usable format?
Three things to do before February 2027
1. Map the data that already exists
Start with the core descriptive fields that most suppliers already track: chemistry, mass, recycled content share, dismantling instructions. These are not new requirements in practice. What is new is the obligation to deliver them in a structured, verifiable format inside the passport.
The mistake is waiting until January 2027 to ask. By then, the question is no longer "can you send me this data?" but "why did you not have it ready?" The answer is that the deadline was known for months.
2. Make every handoff auditable
A battery supply chain has dozens of upstream actors. Without a common recording format, data loses fidelity at every transfer point. A shared ledger or structured data exchange between you and your suppliers means that when you need to prove what was asked, when, and what was delivered, you have a traceable record.
This is where eIDAS timestamps and immutable registration make a difference. It is not about blockchain hype. It is about being able to show, with dated evidence, that you did your part.
3. Do not confuse the timeline
The battery passport obligation starts 18 February 2027. Supply chain due diligence reporting starts later, on 18 August 2027, under Regulation (EU) 2025/1561. Getting your supplier data flows in order now means you are ahead of both deadlines, not scrambling when the first one hits.
The point nobody talks about
Being responsible does not mean controlling everything. It means being able to demonstrate, with dated and verifiable evidence, what you asked for, when you asked for it, and what you received. That is the difference between compliance and hope.
For SME manufacturers who do not have a dedicated compliance team, the practical path is simple: start with the data that already exists in your supply chain, lock down the handoffs, and build the evidence trail before the regulation demands it.
The battery passport is not a paperwork exercise. It is a supply chain visibility requirement. The companies that treat it that way will be the ones still selling batteries in Europe after February 2027.
Start free → https://www.hokenpass.com
Free ESPR compliance checklist → https://www.hokenpass.com/resources/espr-compliance-checklist