# Britain adopts Euro 7: new EVs from November 2027 must keep 72% of battery capacity at eight years

The government confirmed on 27 October that every new car and van registered in Great Britain from 29 November 2027 must meet Euro 7. For electric and plug-in hybrid cars, that sets a legal floor for battery health: 80% up to five years or 100,000 km, and 72% up to eight years or 160,000 km.

- Type: Report
- Desk: Batteries and supply chain
- Published: 2026-10-28
- By: Charjin Editorial Desk
- URL: https://charjin.com/stories/uk-euro-7-ev-battery-health-rules-2027

## Will Euro 7 protect the battery in the electric car I buy?

Only if the car is approved to Euro 7, and the duty falls on the manufacturer rather than giving you a new claim. Every new car registered in Great Britain from 29 November 2027 must meet it. Cars already on the road, and new cars registered before then on older approvals, are not covered, so the maker’s battery warranty still matters.

## What changed

1. All new cars and vans registered in Great Britain from 29 November 2027 must meet Euro 7. Small-volume makers have until 1 July 2030.
2. Electric and plug-in hybrid cars must keep at least 80% battery health up to five years or 100,000 km, and 72% up to eight years or 160,000 km. For vans the floors are 75% and 67%.
3. Cars must make battery state-of-health data available to the driver, which should make used-EV checks comparable between makes.
4. It is policy, not yet law: a statutory instrument is still to be laid, and there is no compulsory date for new models before 2027.

## What the government decided

On 27 October 2026 the Department for Transport published its response to a spring consultation and confirmed that Great Britain will move to Euro 7 for new cars, vans, trucks, buses and coaches, and for their brakes, tyres and replacement pollution-control parts. The consultation ran from 13 April to 25 May and drew 67 responses. [1][6]

For cars and vans the date that matters is 29 November 2027, when all new registrations must meet the standard. Small-volume manufacturers, those registering fewer than 2,500 cars or vans a year in Great Britain, have until 1 July 2030. Dates for trucks, buses and coaches will follow a further consultation. [1][7]

Two things are still open. The government dropped the compulsory date for new light-vehicle types that it had proposed for 29 November 2026. And the decision is not yet law: the department will lay a statutory instrument under the Product Regulation and Metrology Act 2025, and until it is in force the Vehicle Certification Agency will not accept EU Euro 7 approvals. [1][2][6]

Britain will not run its own tests. It will accept EU and equivalent UNECE type approvals. Northern Ireland, which follows EU vehicle standards under the Windsor Framework, is outside this decision. [1][6]

## The battery floor in numbers

Annex II of the EU regulation sets minimum performance requirements based on battery energy, expressed as state of health: a percentage of the performance measured when the car was certified or new. For cars, fully electric and plug-in hybrid alike, the floor is 80% up to five years or 100,000 km, then 72% up to eight years or 160,000 km, whichever comes first. For vans it is 75% and 67%. [3][6][8]

Cars must also tell the driver how the battery is doing. The regulation requires environmental data, including the traction battery’s state of health, to be made available to users and shown in the vehicle where appropriate. The department’s consultation said the monitors must be accurate and comparable, and that this would help second-hand buyers. [2][3][7]

The EU text already plans a review. By the end of 2027 the European Commission must report on battery durability and assess whether floors should extend to at least 10 years or 200,000 km. [3]

## A worked example: what 72% means for range

This is Charjin’s illustration, not data for any model. Take a car with 80 kWh of usable energy and a 500 km WLTP range. At the five-year floor of 80% it would hold 64 kWh, worth about 400 km on the same test. At the eight-year floor of 72% it would hold 57.6 kWh, or about 360 km. [3]

That assumes range falls in step with usable energy, which is a simplification, since weather, speed and tyres also change real-world range. The floor is a legal minimum, not a forecast of how fast any particular battery will age. [3]

Compare that with a warranty. Hyundai UK covers the high-voltage battery of models first produced after 2020 for 8 years or 100,000 miles, about 161,000 km, and pays for repairs needed to bring capacity back to at least 70%. Over almost the same distance the Euro 7 floor is two points higher. A warranty is a promise to the owner, while Euro 7 is a duty on the manufacturer, and the government response does not say what an individual owner can claim if their own battery falls short. [1][3][4]

## Who is covered, and who is not

The rules bite on new registrations from 29 November 2027. Cars already on the road are not affected. Under the April proposal, cars and vans approved to Euro 6d or Euro 6e could still be registered until 28 November 2027, or 30 June 2030 for small-volume makers. [2][5]

Because there is no compulsory date for new models, some launched in 2026 and 2027 may be approved to Euro 7 early and others will not. A buyer cannot assume that a new electric car bought before the deadline carries the battery floor or the health monitor. [1]

The BVRLA welcomed the decision. Its chief executive, Toby Poston, said it gives one consistent benchmark for battery durability across manufacturers, and that battery health data should become much easier to get. [7][8]

## What to check now

If you are buying new before late 2027, ask whether the car is type-approved to Euro 7 and whether it shows battery state of health. If it is not, the maker’s warranty is your protection, so read its capacity threshold as well as the years and miles. [1][4]

If you are buying used, ask for a battery health reading. On cars approved to Euro 7 it should be available on the dashboard or through the diagnostic port, in a form designed to be comparable between makes. Cars approved before Euro 7 are outside that requirement. [2][7]

Still unknown: when the statutory instrument will be laid, and how the Vehicle Certification Agency will check battery durability on cars once they are in service in Britain. [1]

## Common questions

**Does Euro 7 apply to plug-in hybrids?**

Yes. The battery floors for cars apply to both fully electric cars and plug-in hybrids: 80% up to five years or 100,000 km, and 72% up to eight years or 160,000 km.

**Will my current electric car be affected?**

No. The standard applies to new cars and vans registered from 29 November 2027, or to models approved to it earlier. Cars already on the road are not covered.

**Is the 72% floor the same as a battery warranty?**

No. It is a type-approval requirement on the manufacturer. A warranty is the maker’s promise to you, with its own years, miles and capacity threshold; Hyundai UK’s, for example, is 8 years or 100,000 miles down to 70%.

## Evidence

[1] Department for Transport (GOV.UK), "Updating the minimum emission standard for new road vehicles: government response" (primary, accessed 2026-10-28). The decision to adopt Euro 7, the 29 November 2027 and 1 July 2030 dates, no compulsory date for new types, acceptance of EU and UNECE approvals, the statutory instrument and the VCA position. https://www.gov.uk/government/consultations/updating-the-minimum-emission-standard-for-new-road-vehicles/outcome/updating-the-minimum-emission-standard-for-new-road-vehicles-government-response
[2] Department for Transport (GOV.UK), "Updating the minimum emission standard for new road vehicles (consultation)" (primary, accessed 2026-10-28). The proposed GB dates, including 29 November 2026 for new types and the last registration dates for Euro 6d and 6e vehicles, and the description of battery health monitors. https://www.gov.uk/government/consultations/updating-the-minimum-emission-standard-for-new-road-vehicles/updating-the-minimum-emission-standard-for-new-road-vehicles
[3] EFTA Secretariat (consolidation of the EU regulation), "Regulation (EU) 2024/1257 (Euro 7), consolidated text" (primary, accessed 2026-10-28). Annex II battery durability floors for cars and vans, the definition of state of health, the battery data requirement and the 2027 review clause. https://www.efta.int/sites/default/files/uploads/2026-05/32024R1257-consolidated.pdf
[4] Hyundai Motor UK, "Hyundai warranty terms and conditions" (manufacturer, accessed 2026-10-28). Hyundai UK’s high-voltage battery warranty: 8 years or 100,000 miles for models first produced after 2020, with repairs to restore at least 70% of original capacity. https://dmassets.hyundai.com/is/content/hyundaiautoever/5_year_warranty-terms-and-conditionspdf
[5] electrive, "UK adopts EU’s Euro 7 Standard, including battery lifespan rules" (reference, accessed 2026-10-28). Independent report of the decision, the battery thresholds and that existing vehicles are not affected. https://www.electrive.com/2026/10/28/rules-for-battery-lifespan-uk-adopts-eus-euro-7-standard/
[6] FleetPoint, "Government confirms Euro 7 for new vehicles" (reference, accessed 2026-10-28). Independent report confirming the consultation dates and responses, the statutory instrument, the battery floors for cars and vans, and that Northern Ireland is outside the decision. https://www.fleetpoint.org/environment-news/euro-7/government-confirms-euro-7-for-new-vehicles/
[7] EV Fleet World, "UK to mandate Euro 7 battery health rules to standardise used EV transparency" (reference, accessed 2026-10-28). Independent report of the dates, battery data on the dashboard or through the OBD port, and the BVRLA’s response. https://evfleetworld.co.uk/uk-to-mandate-euro-7-battery-health-rules-to-standardise-used-ev-transparency/
[8] Transport+Energy, "Battery health rules introduced as UK Government introduces Euro 7" (reference, accessed 2026-10-28). Independent report of the car and van battery retention figures and the BVRLA’s comments. https://transportandenergy.com/2026/10/27/battery-health-rules-introduced-as-uk-government-introduces-euro-7/

Cite as: Charjin, "Britain adopts Euro 7: new EVs from November 2027 must keep 72% of battery capacity at eight years", 28 October 2026, https://charjin.com/stories/uk-euro-7-ev-battery-health-rules-2027