August 18, 2026: Labeling Obligations Now Cover Every Battery
As of August 18, 2026, the labeling requirements under the EU Battery Regulation (Regulation (EU) 2023/1542) apply to all battery categories. This covers not only large EV batteries but also portable batteries in laptops and power tools, as well as light means of transport (LMT) batteries. Required disclosures include rated capacity, expected lifetime, nominal voltage, chemical composition, presence of hazardous substances, separate collection marking, and disposal instructions.
This step extends an obligation that already took effect on February 18, 2026, when rechargeable industrial batteries above 2 kWh became subject to product carbon footprint declaration requirements. Labeling is essentially the window through which consumers and regulators see that underlying data.
The assumption that "we are a component and materials supplier, not a cell manufacturer" no longer offers protection. Under the regulation, the obligated party is the economic operator — the manufacturer, importer, or distributor placing batteries on the EU market. Most Korean materials and component suppliers do not fall into that category directly. But the downstream manufacturer carrying the declaration obligation cannot calculate its carbon footprint or due diligence disclosures without primary data from suppliers of cathode materials, anode materials, separators, electrolytes, and components. The regulation travels down the supply chain in the form of contract clauses and procurement request letters.
The Regulatory Calendar for the Next 24 Months
The Battery Passport is a digital record accessed via QR code, containing roughly 51 mandatory data points. These fall into four groups: general information (manufacturer, model, manufacturing date, chemistry), logistics and performance data (capacity, resistance, remaining useful life, charge cycle history), manufacturing greenhouse gas data (stage-by-stage carbon footprint, performance class), and human rights and labor due diligence information (raw material sourcing routes, risk assessment results). Access rights are tiered by item across the general public, interested parties, and regulatory authorities.
Meanwhile, carbon footprint performance classes and maximum thresholds remain deferred pending implementing and delegated acts. This is where practical judgment matters. Distinguishing items that must be finished now under settled rules from items where you only need to accumulate data until the rules land is what drives cost.** Even if the calculation methodology changes, the raw measured data on process-level electricity and material inputs remains fully reusable.
What SME Suppliers Will Actually Be Asked For
First, process-level primary data. For each stage — active material production, electrode coating, cell assembly, pack assembly — you must measure and report electricity consumption, material inputs, and waste generation. Industry average secondary data is, in principle, permitted only for processes outside your operational control.
Second, traceability for four critical raw materials. Sourcing origin, processing route, and transaction history must be documented for cobalt, natural graphite, lithium, and nickel. Because due diligence policies presume third-party verification, records amounting to "we confirmed it verbally" will not survive review.
Third, substantiation for recycled content shares. From August 2031, minimum recycled content thresholds apply — 16% for cobalt, 6% for lithium, and 6% for nickel. Without purchase documentation and mass balance controls established now, retroactive substantiation at that point becomes impossible.
Leverage the Overlap With Systems You Already Have
Companies that have already built a CBAM MRV framework can transfer much of their process-level emissions monitoring and record-keeping procedures directly into Battery Regulation carbon footprint declarations, since the data collection granularity and verification trail requirements are comparable.
The ESPR Digital Product Passport and the Battery Passport also overlap on identifiers, manufacturer information, material composition, and recycling information. Build the product database properly once and it covers both regimes. Maintaining a separate spreadsheet per regulation is the most expensive path over time.
Companies already operating an ISO 14067 (product carbon footprint) or ISO 14040/44 (LCA) framework typically need only three to six months of preparation. Companies with no LCA experience must start from designing the data collection system itself and should plan for twelve months or more.
A Six-Month Execution Plan to Start Now
Months 1–2 — Diagnosis
Identify EU-bound revenue share and affected product lines. Collect supplier questionnaires already received from customers and map exactly which data points are requested, in what format, and by when.
Months 3–4 — Building the Data System
Define measurement points for process-level energy and material inputs, and document the metering and recording procedures. Standardize the data request template you send to your own suppliers so that tier-2 and tier-3 partners report in the same format.
Months 5–6 — Pilot Calculation and Verification Readiness
Run a pilot carbon footprint calculation on one or two representative products and draft your due diligence policy documentation. Consult a third-party verification body in advance to learn what objections your current documentation would attract.
Government support programs can absorb a meaningful share of the cost. A common combination pairs the Export Voucher program for overseas certification and consulting fees, the Overseas Standard Certification Support program for part of the verification cost, and carbon neutrality consulting vouchers for LCA system development. Since eligible cost categories and application windows differ by program, it pays to design this into the execution plan from the outset.
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KITIM supports battery materials and component suppliers across the full arc of EU Battery Regulation readiness — from diagnosis to execution. We work through affected product identification and data gap analysis, design of process-level primary data collection systems, pilot carbon footprint calculations, due diligence policy documentation, and connection to the government support programs that fund this work. If your company has already received data request letters from customers, or is preparing for the February 2027 Battery Passport deadline, we welcome your inquiry.