Used Battery Valuation and the Evidence in the Passport Record

Passport evidence supports a used battery valuation by giving a valuer dated, identifier linked facts about identity, recorded performance and status, which can then be weighed alongside inspection and test evidence. The passport does not set a value, does not contain a price and does not rank one battery against another. A valuation that treats a complete record as proof of high value, or a thin record as proof of low value, overreads the record in both directions, because completeness of documentation and quality of the physical battery are different properties that happen to be recorded in the same place.

The scope is limited to the evidence that Annex XIII places in a passport, read for batteries within Article 77, namely electric vehicle batteries, light means of transport batteries and industrial batteries over 2 kWh from 18 February 2027. Evidence outside the passport, such as test reports held elsewhere or service logs, remains relevant to valuation, but this guide treats that evidence only as context for the passport reading, not as passport content. The position is stated as checked on 28 October 2026, and no price, fee or market figure is stated in this guide.

What evidence in the record bears on value?

Identity evidence bears on value first, because a battery whose identity is certain can be matched to a model, a chemistry and a known set of requirements, while a battery whose identity is uncertain carries a discount for doubt even before condition is considered. Recorded performance and durability information bears on value second, because a dated sequence of state of health entries lets a valuer see trajectory rather than a single point. Status evidence bears on value third, because a status of original, repurposed or remanufactured changes the questions that a later operator must ask. Carbon footprint and recycled content information, which form part of the model information in Annex XIII, bear on value only indirectly, as compliance and reporting facts rather than as measures of remaining capability.

How should dated evidence be weighed?

Dated evidence is weighed by recency, sequence and method consistency. A recent entry weighs more than an old entry for present condition, a sequence weighs more than a single entry for trajectory, and entries made by a consistent method weigh more than entries whose method changed without explanation. A valuer should record the date of the newest entry, the number of entries in the sequence and any change of method noted in the record, before drawing any conclusion. Where the newest entry is old, the valuation should state that the record describes the battery at that earlier date and that present condition rests on inspection and testing, not on the stale entry. The discipline is to date every conclusion to the evidence that supports it.

What does the record not prove about value?

The record does not prove future life, does not prove safety in a new application and does not prove that a battery is suitable for a particular second use. Those conclusions require application specific assessment, including the intended duty, the operating environment and the safety measures for that duty. The record also does not prove that a battery has no hidden defect, because a record captures what was recorded, not everything that could be known. A valuation that presents a passport reading as a warranty overreads the record, and a valuation note should state the boundary between what the record shows and what inspection and testing still need to establish.

What does an evidence scoring illustration look like?

An evidence score is a reading aid, not a valuation, and the illustration below uses labelled illustrative grades to show how different evidence states combine. The grades are invented for illustration only and describe no real battery and no market practice. The illustration shows that identity certainty and recency together shape how much weight a record can carry, while neither factor alone settles the question.

How do gaps change a valuation reading?

Gaps change a valuation reading by introducing a period in which the battery history is unknown, and the valuation should price the unknown as unknown rather than filling it with an average assumption. A gap between first placing on the market and the first later entry, a gap around a change of owner, or a gap around a repair each raises a different question, and the valuation note should name the gap, date it and state what evidence would close it. Where the gap can be closed by documents held elsewhere, the valuation can be revisited once those documents are produced. Where the gap cannot be closed, the valuation should carry the uncertainty openly, because a later reader who discovers the gap after relying on the valuation will treat the whole reading as less reliable.

How does status affect the evidence reading?

Status affects the reading because the same state of health figure means different things for a battery in original use, a battery prepared for reuse and a battery prepared for repurposing. In original use, the figure describes continuation of the first application. In reuse, the figure supports the same kind of application with a new holder. In repurposing, the figure must be read against a different application, with different duty and safety requirements, and Article 73 requires evidence confirming capability for the performance relevant to that later use. A valuer who reads a repurposed battery with original use assumptions will misjudge both capability and risk, so the status entry should be read before the performance figures, not after them.

What limits apply to valuation from a record?

The limits are that a passport is a record, not a test, not a warranty and not a price guide, and that access tiers may withhold the detailed fields a valuer would prefer to see. This guide gives general educational information only and is not individual legal advice. A valuer with a specific battery should check the Regulation text, the access rules in Annex XIII and any applicable national rules as checked on 28 October 2026 before acting.