Sourced fact
The EV Evidence MOT publication contract expressly prevents an MOT result being presented as a State of Health measurement.
Used EV evidence · GB
An EV MOT does not test battery State of Health
A Great Britain MOT does not measure traction-battery State of Health. A pass must not be converted into a battery-capacity percentage, future-range forecast or assurance about hidden pack condition. If battery health matters to a decision, request a dated vehicle-specific professional report that explains its method, conditions and limitations.
Reviewed
Key facts and evidence
For Great Britain, reviewed 13 August 2026, an MOT result is not a measured traction-battery State of Health result. Battery evidence must be gathered separately and tied to the vehicle, date, method, conditions and limitations. Even a detailed report describes a measurement context; it cannot turn the MOT pass into a battery-health assurance.
Sourced fact
A useful State of Health report identifies the vehicle, date, conditions, method, metric, reference and limitations.
Sourced fact
One unexplained percentage must not be treated as proof of pack safety or fixed future capacity.
Why an MOT pass is not a traction-battery State of Health measurement, and what evidence to request for a separate battery assessment.
Two different questions
The MOT records an outcome against its prescribed inspection scope. State of Health is a separate battery metric, so the MOT outcome supplies neither a measured percentage nor a substitute capacity test.
Evidence to request
A vehicle-specific report should identify the vehicle and mileage, the measurement date and conditions, the method and tool or software version, the metric and reference, stored faults, limitations and issuer competence.
Interpretation limit
An unexplained percentage, generic model report or screenshot without identity and method is insufficient purchasing evidence. A report does not by itself establish pack safety or fix future capacity and range.
What to do next
Neither an MOT result nor an isolated State of Health figure establishes driving suitability for a particular EV.
Immediate action: Ask an independent EV-competent assessor for a vehicle-specific written report before relying on a battery claim.
- Treat the battery claim as unverified when vehicle identity, date, method, conditions or limitations are missing.
Checks that stay with this vehicle
Request a written report naming the vehicle, mileage, date, test conditions, method, metric, reference and limitations.
A traceable report whose result and limits can be explained by its competent issuer.
Stop relying on the claim if the report is generic, unidentified, undated or method-free.
Professional hand-off
- Use an independent EV-competent technician or manufacturer-authorised battery specialist to produce and explain the report.
Questions this record can answer
What does the sourced evidence say about two different questions?
The MOT records an outcome against its prescribed inspection scope. State of Health is a separate battery metric, so the MOT outcome supplies neither a measured percentage nor a substitute capacity test.
What does the sourced evidence say about evidence to request?
A vehicle-specific report should identify the vehicle and mileage, the measurement date and conditions, the method and tool or software version, the metric and reference, stored faults, limitations and issuer competence.
What does the sourced evidence say about interpretation limit?
An unexplained percentage, generic model report or screenshot without identity and method is insufficient purchasing evidence. A report does not by itself establish pack safety or fix future capacity and range.