Medical and Critical Applications in Outline and the Battery Passport

Medical and critical application batteries are batteries in equipment where continuity of power matters for health, safety or a critical function, and the outline in this guide is deliberately limited, because the battery Regulation does not set out a separate medical passport, and the medical device and critical infrastructure regimes that govern such equipment sit alongside the Regulation. A battery in a medical device, a battery in a life sustaining system or a battery in a safety critical system raises two questions at once, namely the battery record question and the equipment safety question, and the two questions need separate answers. A reader who answers only one question has not finished the analysis.

The scope is the Regulation category and scope analysis for such batteries, read with the removability discussion for products where continuity of power supply is necessary for safety, which the Regulation addresses in the context of portable battery removability. The guide does not state medical device law, does not advise on any medical application and does not decide the scope status of any particular battery. The position is stated as checked on 28 October 2026, and uncertainty is labelled as uncertainty.

Is there a separate medical battery passport?

There is no separate medical battery passport stated in Regulation (EU) 2023/1542 as summarised for this guide, and no medical specific Annex XIII is described in the Regulation summaries consulted. A battery in medical equipment that falls within a Regulation category would therefore be read under the general category rules, subject to the scope wording in Article 1. Whether a particular medical battery falls within a removability derogation, or within another specific provision, needs a reading of the relevant Regulation article with the facts of the product, and that reading is outside the scope of a general outline. This guide does not decide whether any particular medical battery carries a passport duty.

How does continuity of power affect the analysis?

Continuity of power affects the analysis in the removability context, where the Regulation provides for products in which continuity of power supply is necessary and a permanent connection between product and battery is required to ensure the safety of the user and the appliance, as described in summaries of the removability provisions. That discussion concerns whether a portable battery must be removable and replaceable by the end user, and it is distinct from the passport duty in Article 77, which concerns the electronic record for batteries in scope. A reader should not transfer a conclusion from the removability discussion to the passport question, or from the passport question to the removability discussion, because the two provisions have different tests and different scopes. Each provision needs its own reading.

How do critical application batteries differ in record reading?

Critical application batteries differ in record reading because the consequences of a record error or a record gap are higher where the battery supports a critical function, so the reading needs greater care, more complete documentation and a lower tolerance for unexplained gaps. The care is a matter of practice and risk management, not a separate Regulation standard stated in the summaries consulted, and a reader should not invent a higher passport standard for critical batteries where the Regulation states a single Annex XIII structure. The passport entries that matter most in a critical reading are the safety measures, the performance entries and the status entries, read together with the equipment documentation, because those entries describe the battery in the terms that a critical operator needs.

What does a critical reading table look like?

A critical reading table separates the battery record from the equipment safety file, so that neither file is mistaken for the other. The table below uses general file descriptions, without stating medical or safety law.

What should an operator in a critical setting record?

An operator in a critical setting should record the battery identifier, the passport reading with dates, the equipment association with dates, the maintenance and test history, and any change of battery or status, in one file that a later operator can follow. The file should state the limit of each source, so that a later reader does not treat a passport entry as an equipment approval or an equipment approval as a battery history. The discipline is the same as for other batteries, applied with greater care, because the cost of confusion is higher. A file that is complete, dated and kept together is the practical outcome that this outline recommends, without claiming a legal standard for critical files.

What remains uncertain in this outline?

What remains uncertain includes the scope and removability position for particular medical products, the interaction with medical device law for particular devices, and the practical operation of the passport for batteries in critical infrastructure. Each uncertainty is labelled here, because resolution needs product specific facts and a reading of the relevant sector law. A reader who needs a conclusion for a particular product should obtain a case specific reading, and should not treat this outline as that reading. The outline maps the questions that a case specific reading must answer.

What limits apply to this outline?

The limits are that this guide is an outline only, gives no medical advice and does not state sector law. This guide gives general educational information only and is not individual legal advice. A reader with a specific medical or critical battery should check the Regulation text and the sector law as checked on 28 October 2026 before acting.