Where Do the LMT Threshold and Scope Boundaries Fall?

The LMT threshold and scope boundary is decided by four tests applied together: the battery is sealed, the battery weighs 25 kilograms or less, the battery is designed to provide traction power, and the battery powers a vehicle in category L without being an electric vehicle battery. No capacity threshold applies to the LMT passport duty, so a small LMT battery and a large LMT battery both fall inside the passport duty from 18 February 2027 when placed on the market or put into service.

Scope work is therefore a measurement and classification exercise before it is a data exercise. Weight must be verified, sealing must be confirmed from design evidence, traction purpose must be read from design intent rather than from later use, and vehicle category must be established from vehicle classification material. A scope decision that rests on a single test, such as vehicle name or battery size alone, is incomplete and is likely to misclassify a boundary case.

What counts as sealed for scope purposes?

Sealing in the LMT definition describes a battery construction that is closed as manufactured, rather than a battery whose cells are openly accessible or assembled by the user. The test is a design and construction test, and evidence comes from design documents, manufacturing records and physical inspection of the pack as placed on the market. A pack that is sealed at manufacture but opened for repair does not retroactively lose its original classification, although the repair event itself needs its own record treatment.

Scope notes should record the sealing evidence relied on, such as housing construction, closure method and any design statement that the pack is supplied as a sealed unit. Where a pack is supplied as modules for assembly, the scope question moves to the assembled battery as placed on the market or put into service, and the assembler role must be identified. A scope note that states only that a pack looks sealed, without design evidence, is weaker than a note that cites the construction relied on.

How is the 25 kilogram weight measured?

Weight for the LMT test is the weight of the battery as defined for classification, verified from design and manufacturing evidence rather than estimated from a vehicle specification sheet. The measurement point matters: a pack weighed with a mounting bracket, charger or detachable accessory may exceed the limit on paper while the battery itself does not, and a pack weighed without a fixed housing component may fall below the limit incorrectly. The scope note should state what was weighed, on what basis, and with what tolerance or rounding.

Worked check: a pack is listed at 26 kilograms on a vehicle sheet that includes a 1.5 kilogram mounting bracket. The battery alone weighs 24.5 kilograms. The scope decision should rest on the battery weight of 24.5 kilograms, recorded with the bracket weight shown separately, and the battery should be classified as LMT if the other tests are met. A decision that copies the vehicle sheet figure without separating the bracket misclassifies the battery.

Why is there no capacity threshold for LMT passports?

The Regulation sets the LMT passport duty without a capacity threshold, while the industrial battery passport duty applies only above 2 kWh. The difference reflects the category structure: LMT status already narrows the field by weight, sealing, traction purpose and vehicle category, so an additional capacity filter is not used to define the duty. A small LMT battery for a light vehicle and a larger LMT battery for a heavier category L vehicle are both inside the duty, and the passport content follows Annex XIII for the category.

The absence of a capacity threshold removes one common scope error, which is to assume that a small pack is outside the passport duty. Capacity remains relevant to other duties, such as performance, durability and carbon footprint presentation, where thresholds and methods are set separately. Scope work should therefore keep two questions apart: is the battery LMT, and what capacity related duties apply to that LMT battery. Merging the questions produces scope decisions that are correct for one duty and wrong for another.

How do vehicle category and traction purpose interact?

Vehicle category and traction purpose interact as a combined test. The battery must power a vehicle in category L, and the power must be traction power, meaning power that moves the vehicle, rather than auxiliary power for lights, instruments or starting. A battery that provides only auxiliary power to a category L vehicle does not meet the traction test, and a traction battery for a vehicle outside category L does not meet the vehicle test. Both elements must be present for LMT classification.

Design intent is the evidence for traction purpose. A battery designed and specified as a traction battery, with voltage, capacity and discharge characteristics set for traction, meets the test even when the vehicle also carries a separate auxiliary battery. A battery designed for auxiliary use that is later used for traction by a modifier does not change its original classification by that later use alone, although the modification itself may create a new placing on the market question. The scope note should record design intent at the time of placing on the market.

What happens at the LMT and electric vehicle boundary?

The LMT and electric vehicle boundary for category L vehicles turns on weight. A sealed traction battery for a category L vehicle that weighs 25 kilograms or less and is not an electric vehicle battery is LMT. The same battery above 25 kilograms is treated as an electric vehicle battery. The boundary is sharp in the Regulation text, but measurement and housing inclusion can make a near limit pack difficult to classify, and near limit packs need the most careful weight evidence.

Near limit packs should receive a second weight verification from an independent measurement or from manufacturing quality records, and the scope note should record both values and the basis for the value relied on. A pack that moves across the boundary through a design change, a housing change or a variant change should be reclassified and the passport and labelling records reviewed. Treating a variant as covered by an earlier classification note without checking weight is a recurring scope failure.

How should scope uncertainty be handled?

Scope uncertainty should be recorded as uncertainty, with the tests that are settled, the tests that remain open, and the evidence needed to close each open test. A provisional classification may be used for planning, but it should be labelled provisional, dated, and tied to a review trigger, such as receipt of weight evidence or vehicle classification material. A provisional classification that is copied into a passport without review converts an open question into a false certainty.

As checked on 28 October 2026, no general scope ruling can be given for a battery from a description alone, because weight, sealing and vehicle category are facts about the specific battery and vehicle. The scope method in this guide is a checking sequence, not a ruling for any named product. 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. Scope is settled test by test, and the passport that follows a scope decision should carry the evidence trail that the tests were actually applied.