How Does Repair Change an LMT Battery Record?

Repair of an LMT battery keeps the same battery passport and the same unique identifier when the work restores the same battery without creating a new battery life stage. The repair is reflected in the passport fields that record changes to the battery, and the repairer, date and nature of the work are recorded in the evidence that supports the passport. From 18 February 2027, the passport duty applies to LMT batteries placed on the market or put into service, and repair after that date must be read against the record that already exists for the battery.

The distinction that governs repair is between restoring a battery and creating a battery in a new life stage. Preparation for reuse, repurposing and remanufacturing are defined life stage operations in Regulation (EU) 2023/1542, and each carries its own treatment for conformity, passport and operator responsibility. Ordinary repair, component replacement within the same battery identity, and professional replacement of a removable pack are different operations with different record consequences. Labelling work as repair does not settle the question; the nature of the work does.

What repair work keeps the same passport?

Work that keeps the same passport includes repair that restores the battery to its specified condition without changing its model identity, chemistry or safety status in a way that creates a new battery. Examples in record terms include replacement of a connector, housing or battery management component where the battery identity, chemistry and rated characteristics remain those of the original battery, and where the work is carried out by an independent professional with access to the relevant dismantling and safety information. The passport is updated to reflect the repair, not replaced.

A repair record should state the battery identifier, the work carried out, the parts replaced, the professional who carried out the work, the date, and any test or inspection result relied on. The record should distinguish between parts that are like for like and parts that change a rated characteristic. A like for like replacement supports continuity of the passport. A replacement that changes a rated characteristic needs a closer check against the model data and may need a classification review. The repair note is evidence, and it should be kept with the passport evidence even when only a summary field appears in the passport itself.

When does repair become a new life stage?

Repair becomes a new life stage when the work amounts to preparation for reuse, repurposing or remanufacturing as defined in the Regulation. Preparation for reuse concerns a waste battery prepared for reuse without other pre-processing. Repurposing concerns a battery, or parts of a battery, used for a different application than originally designed. Remanufacturing concerns restoring a battery to a condition where it can be used for its original purpose with at least equivalent performance. Each definition turns on purpose, processing and resulting condition, not on the workshop label.

Worked check: a damaged e-bike pack is opened, faulty cells are replaced, and the pack is returned to the same cycle for the same purpose with its original identity. The record treatment is repair, with the work and test results recorded. A second pack is taken from a retired scooter, tested, and fitted to a stationary storage unit for a different application. The record treatment is repurposing, with new life stage duties. The workshop skill may be similar, but the record consequence differs because purpose and life stage differ.

Who may replace an LMT battery?

LMT batteries must be removable and replaceable by an independent professional, as set out in Article 11 of Regulation (EU) 2023/1542, with the detailed meaning clarified in Commission guidance on removability and replaceability. An independent professional is a person with the competence to replace the battery safely for professional purposes, distinct from an end user carrying out the replacement. The vehicle or product design must allow that professional replacement throughout the lifetime of the product, subject to the derogations and conditions set in the Regulation and any applicable delegated act.

The record consequence of professional replacement is that the vehicle record and the battery record must be kept distinct. Replacement of a battery with a different individual battery changes the battery identifier associated with the vehicle, and the new battery brings its own passport. A vehicle log that retains the old identifier after replacement will misdirect a later repairer or recycler to the wrong passport. The handover check after replacement should confirm the new identifier, the new carrier resolution and the removal of the old battery from the vehicle record.

What dismantling information supports repair?

Dismantling information for repairers with a legitimate interest includes safe opening, component location, fastening and connection detail, and safety measures for handling, as set out in Annex XIII. The information must be sufficient to allow repair without damage to the battery or the product, and without creating a safety risk. Access to that information is tiered, so a repairer receives the dismantling detail needed for the work, while public access remains limited to the public tier. A repairer who works without the dismantling information risks damage and safety failure, and the repair record should show that the information was available.

Information currency matters as much as information access. Dismantling information for an early production variant may not match a later variant with a revised housing or connector. The repairer should confirm that the dismantling information matches the battery variant in hand, by model, production date and variant identifier where available. A mismatch should pause the work until the correct information is obtained. Working from a similar variant is not a substitute for working from the correct variant.

How are repaired batteries presented to a later buyer?

A repaired LMT battery presented to a later buyer should be presented with its passport, its repair history in the fields available to the buyer, and a clear statement of its current status. The presentation should not describe a repaired battery as new, should not omit a repair that changed a rated characteristic, and should not present a repurposed battery as if it remained in its original application. The buyer check is identity, status and history, and the seller record should make that check possible without special access beyond the tiers defined in Annex XIII.

Presentation discipline protects both parties. A seller who discloses repair history with dates and test results gives the buyer a basis for inspection and professional assessment. A seller who omits repair history leaves the buyer to discover the repair at a later failure or recycling event, when correction is harder. Disclosure in the passport fields and disclosure in the sales description should agree, and any difference between them should be treated as a record error to be corrected before sale.

What evidence should be kept after repair?

Evidence after repair should include the classification note for the work, the dismantling information relied on, the parts and test records, the professional identity, and the passport update record. The evidence should be kept for the period required for technical documentation and conformity evidence, and should be available to a market surveillance authority on request. Evidence kept only in a workshop diary that cannot be linked to the battery identifier is weak evidence, because the link between work and battery cannot be shown.

As checked on 28 October 2026, the detailed rules for introducing, modifying and updating passport information depend in part on acts under Article 77. A repair evidence file prepared before those acts are final should carry its preparation date and review trigger. This guide gives general educational information only and is not individual legal advice. A reader with a specific battery or market decision should check the current Regulation text and any applicable delegated act, as checked on 28 October 2026, before acting.

This guide gives general educational information only and is not individual legal advice. A reader with a specific battery or market decision should check the current Regulation text and any applicable delegated act, as checked on 28 October 2026, before acting. Repair is a record event as well as a workshop event, and the passport should show the same battery, honestly updated, rather than a new identity invented for convenience.