EV Battery Health Test Cost in the UK: Dated Price Examples

Published prices are examples, not a national average

The UK examples below come from the providers’ own pages, checked on 26 September 2026. They are not an exhaustive directory, an endorsement or a promise that a service is available for your car. Tests differ in method, supported vehicles and reporting. Compare scope before comparing price. The source links are provided for price and service verification. This guide does not offer bookings or endorse a provider. Follow the source links and obtain a current quotation before travelling.

KMC Electric: advertised £70 plus VAT

KMC Electric in Kettering lists a standard price of £70 plus VAT. The page describes a Generational+ diagnostic assessment with SoH, cell-imbalance information and a printed or digital report. Confirm the final tax-inclusive quotation, whether the exact vehicle is supported and what preparation it needs. A previous introductory price is not included in this comparison because it was not shown on the provider page at this review.

Hills Ford: advertised £95 plus VAT

Hills Ford advertises an AVILOO battery test at £95 plus VAT at Worcester. The provider describes a diagnostic connection without a driving or charging test and a SoH certificate. Its compatibility claim is not a guarantee for every EV; contact the provider about the exact vehicle. The displayed amount excludes VAT, so request a final tax-inclusive quotation. This guide preserves the provider’s price wording rather than presenting unlike tax bases as directly comparable totals.

Why the cheapest advertised test may answer a different question

A short diagnostic assessment, a manufacturer test and a measured-capacity test are not automatically interchangeable. Ask which method produces the reported percentage and whether any faults or unusual observations are explained. If your concern is a charging failure, a capacity-focused certificate may not include the investigation you need. If you are pursuing a warranty claim, confirm the required diagnostic route with the warrantor first. Paying twice for two different procedures may be avoidable when the question is clear.

Build a comparable written quotation

For each provider, record the total including tax, the exact test, vehicle compatibility, appointment duration, preparation, report delivery and any follow-up charges. Ask whether an inconclusive result is retested, whether interpreting it is included and whether fault investigation costs extra. A free low-voltage battery check should not be entered into your comparison as a free traction-battery health test. Keep optional repair work separate from the initial assessment and do not treat a diagnostic fee as a replacement-pack price.

If your location or vehicle is not covered

These examples do not establish a typical price elsewhere in the UK or in another country. Ask a suitable local EV specialist for the same written scope. Use the test-method guide to describe the evidence you need and the viewing checklist to collect what the seller already has. If a recent, complete report exists, first check its identity, date and method; repeating a test without reviewing the existing evidence may not resolve your actual question.

A booking quotation worksheet

These are questions to complete with a provider, not additional market prices. Keep the dated advertised examples above separate from the current quotation you receive.

Keep the scope when comparing two quotes

Suppose one quotation includes only a health summary, while another also includes a general pre-purchase inspection. Their totals do not measure the price of an identical service. Separate the battery assessment, inspection and optional repair work into lines before deciding which meets the question you need answered. Ask the provider to put any promotional conditions in writing.

Before you rely on the answer

• Is the advertised offer still valid for my appointment?
• Is the amount quoted tax-inclusive and complete?
• What happens if the vehicle is unsupported or the result is inconclusive?

Worksheets and numerical scenarios are original EVVerity editorial examples. They are not observed vehicle results or market-price data.

Apply this to a model

Check the model’s battery references, charging equipment and viewing checklist. Match the year and original market to the car you are considering.

Browse all model guides and source references →