A battery’s record.
A clearer understanding.

Start with the regulatory context

Read our overview of the EU framework, its scope and timing. Do not assume that a digital record exists for every used EV, or that all fields are open to every reader.

Keep evidence in its proper place

A passport record, an original vehicle specification and a battery diagnostic answer different questions. Check the source, date, definition and applicable battery before using a value in a calculation.

Use a record alongside the viewing evidence

Start with the data-fields guide to understand what a value describes. Then check how the record identifies the battery, who supplied the information and when it was updated. An original specification and a recent observation should not be treated as interchangeable.

If the seller shares a QR code, use the QR guide to understand the next checks. A code alone does not establish that the destination is authentic or that the record matches the car. Keep the seller’s diagnostic report, repair documents and warranty information alongside any passport record. Our buyer guide explains how to organise these questions without assuming access to restricted fields.