Remanufacturing vs repair

Repair and remanufacturing are different operations, and the record must not use the two words for the same work. Repair restores a battery, module, or pack to working condition within its original specification, often by replacing a faulty component or correcting a fault. Remanufacturing is a more complete rebuild, in which the battery is disassembled, inspected, and rebuilt, with worn or faulty parts replaced, so the result meets a defined specification for a further life. The Regulation and the standard EN 18061:2025 treat maintenance, repair, reuse, and preparation for repurposing as distinct steps, and the passport and conformity consequences follow the operation named. A file that calls every intervention a repair hides the scale of the work.

Repair means work that restores function without a full rebuild. Remanufacturing means a controlled rebuild to a stated specification, with inspection and testing of the rebuilt unit. The scope is EV batteries and, by analogy, other large batteries where the operation is applied.

What is the legal frame for this stage?

Remanufacturing and repair is not a single event at the end of a battery life. Article 3 should be read with the definitions in Article 3, because the category of the battery decides which collection and treatment duties apply. A workshop repairing a faulty module in an EV pack needs to know the category before any other check, since a portable battery, an LMT battery, an EV battery, and an industrial battery follow different routes. Replacing a single faulty cell in a module, where the manufacturer allows cell replacement, should be recorded as repair with the cell identity, while rebuilding a pack with new modules should be recorded as remanufacturing with the full test set.

How are handovers recorded?

For remanufacturing and repair, the handover record should also state the condition of the battery, the reason for transfer, and any safety information passed with it. The work order, parts replaced, and post work test results should be retained for each transfer, including consignment notes where waste law requires them. A workshop repairing a faulty module in an EV pack should check that quantities at receipt match quantities at dispatch, allowing for the measurement method stated in the record.

How are targets stated and checked?

For remanufacturing and repair, the relevant target may be a collection rate, a recycling efficiency rate, or a material recovery rate, and each target has its own calculation method, reference period, and chemistry scope. Cell replacement is allowed only where the manufacturer describes and allows it, and the record should cite the manufacturer instruction relied on, rather than assume that a cell can always be replaced. A workshop repairing a faulty module in an EV pack should record the source of each figure and the date on which the figure was checked, using a dated snapshot where a figure can change.

How are safety and classification decided?

Remanufacturing and repair may involve a battery that is damaged, swollen, leaking, or otherwise in a condition that changes handling, and the record should state the condition found, the test or inspection applied, and the decision that followed. Replacing a single faulty cell in a module, where the manufacturer allows cell replacement, should be recorded as repair with the cell identity, while rebuilding a pack with new modules should be recorded as remanufacturing with the full test set.

What belongs in the passport entry for this stage?

For remanufacturing and repair, the entry should show the stage reached, the operator responsible at that stage, the date of the stage, and a reference to the underlying evidence, without adding a claim about a later stage that has not happened. The work order, parts replaced, and post work test results should be linked by identifier, so the passport entry, the handover note, and the treatment record refer to the same battery. A workshop repairing a faulty module in an EV pack should check that the passport entry is updated when the stage changes, and that an earlier entry is preserved in version history rather than overwritten without trace. Cell replacement is allowed only where the manufacturer describes and allows it, and the record should cite the manufacturer instruction relied on, rather than assume that a cell can always be replaced.

What stays open, and how is it followed up?

For remanufacturing and repair, open items may include a missing handover note, a pending test result, a facility report not yet received, or a delegated act not yet published that will set a method or a format. A workshop repairing a faulty module in an EV pack should list each open item, name the owner, and give the next review date. Replacing a single faulty cell in a module, where the manufacturer allows cell replacement, should be recorded as repair with the cell identity, while rebuilding a pack with new modules should be recorded as remanufacturing with the full test set.

How is the operation name chosen for one job?

Choosing the operation name for one job starts with the work description. A job that replaces a faulty connector and tests the pack is repair. A job that disassembles a pack, inspects every module, replaces worn modules, and rebuilds the pack to a stated specification is remanufacturing. A job that checks a pack, cleans it, and returns it to service without replacing parts is maintenance. A worked work order shows the fault, the parts, the labour steps, and the tests, and the supervisor records the operation name that matches the work, with the manufacturer instruction cited. The passport entry then uses the same operation name, so the history and the passport agree.

The operation name decides the tests and the record that follow, and a misnamed operation produces a record that answers the wrong question.