Buying a used electric car has always come with one big unknown: the condition of the battery. EV All Day, our new sister company built by the same team behind ServiceStamp, has just launched the UK's first vehicle check built specifically for electric cars, and it puts that missing number front and centre. For £9.99, buyers get an instant estimate of a used EV's battery health, its real-world range today versus when it was new, and how much battery warranty is left. All from nothing more than a registration number and the current mileage.
We'll be straight with you from the start: this isn't arms-length news coverage. We built EV All Day, so we know the product inside out, and you should keep that in mind as you read our take on it. What we can promise is an honest explanation of what the check does, what it doesn't, and why we think it needed to exist.
The Number You Can't See
On a petrol or diesel car, you judge condition the traditional way: mileage, MOT history and service records. We built ServiceStamp around that last one, because manufacturer service history is the strongest signal of how a combustion car has been treated.
Electric cars play by different rules. The battery can account for up to 40% of an EV's value and costs anywhere from £5,000 to £15,000 or more to replace. Yet its condition appears nowhere. It's not on the advert. It's not on the V5C. It's not on the MOT. And a seller is under no obligation to evidence it.
Standard history checks don't help either. They were built for petrol and diesel cars, so they'll tell you about outstanding finance, theft and write-off status, but nothing about the single component that decides what an electric car is actually worth.
That's the gap EV All Day has set out to close.
Why Mileage Misleads on an EV
Here's the part most buyers don't realise: on an electric car, mileage is a surprisingly poor guide to battery condition.
Batteries degrade based on age, mileage and, crucially, how they've been charged. Heavy, frequent rapid charging can roughly double the rate of battery wear, according to EV All Day. That means two identical-looking cars can hold very different batteries.
Consider two 2019 Nissan Leafs, both advertised at the same price:
- Car A has covered 80,000 miles, but it's been charged gently at home overnight for its whole life, kept between 20% and 80% charge.
- Car B has covered just 30,000 miles, but it spent its early years as a motorway car, rapid-charged to 100% several times a week.
On paper, Car B looks like the obvious buy. In reality, Car A could easily hold the healthier battery, with more of its original range intact and more value left in it. Car B's lower mileage hides a battery that's been worked hard.
Until now, a buyer had no independent way to tell these two cars apart from the listing. The dashboard range guess can mislead, the seller may genuinely not know, and a forecourt inspection tells you nothing about what's happening inside the pack. Most buyers would have driven to view Car B and been none the wiser.
This is exactly the scenario an EV All Day check is designed for: screening cars from the listing, before you spend an afternoon travelling to see the wrong one.
What the £9.99 Check Shows
Every report is built around EV-specialist battery and range data from ClearWatt, cross-checked against official DVSA MOT and mileage records. Depending on the vehicle, a report includes:
- Estimated battery health and range retention versus when the car was new
- A battery-health grade (such as A+) where a manufacturer test record exists
- Expected real-world range now, shown side by side with the official WLTP figure
- Remaining battery warranty in miles and months, with an Active or Expired badge
- Usable and total battery capacity (kWh)
- Charging, running cost, efficiency and full specification data, powered by EV Database
- Full MOT and mileage history from the DVSA, which also feeds the range estimate
The service is offered through two entry points, depending on what you're looking for: an EV Battery Check that leads with the battery reading, and a fuller Used EV Check that adds charging, running-cost and specification detail. Both are the same £9.99 report.
We want to be upfront about what the reading is, and EV All Day says the same on its own pages. It's an estimate built from aggregated real-world data plus the specific car's age and mileage, with a manufacturer grade shown where a test record exists. It is not a plugged-in, OBD-measured State of Health. It's the read you can get from a listing, before you ever contact the seller, and that's precisely what makes it useful at the screening stage. You can see exactly what you'd get in the sample report.
How It Works
Getting a check takes about thirty seconds:
- Enter a UK registration and the current mileage. No VIN required. The car is confirmed as an eligible EV before any payment is taken, and mileage is pre-filled from the latest MOT.
- Pay £9.99 by card through Stripe. No subscription, no account needed.
- Get the report in seconds, three ways: instantly on screen, as a downloadable PDF, and as a copy by email.
If a report can't be generated because data isn't available for the vehicle, the payment is refunded in full, automatically. Coverage spans the mainstream UK electric market, including Tesla, Nissan, Kia, Hyundai, Volkswagen, BMW, MG and Jaguar, among many others.
For dealers and traders appraising electric stock regularly, trade accounts bring the price down to £3.99 per check with a dashboard for volume use.
The Complete Used EV Check Strategy
We always tell buyers the same thing: no single check covers everything, so know what each one does. For a used electric car, the picture now looks like this:
| Check | What It Covers | Price |
|---|---|---|
| ServiceStamp | Manufacturer service history, dealer records, maintenance verification | £9.99 |
| EV All Day | Battery health, real-world range, remaining battery warranty, MOT and mileage | £9.99 |
Yes, both of those checks come from our team, so of course we'd recommend the pair. But the logic stands on its own. Service history still matters on an EV: brakes, suspension, coolant systems and software updates all leave a dealer-record trail, and a car that's been looked after tends to have been charged sensibly too. What service history alone can't tell you is what's happening inside the battery pack, which is why we built a separate check for it rather than bolting a guess onto this one. Together, the two reports cover both how the car has been maintained and the condition of its single most valuable component.
EV All Day is also working on a full EV history check, bringing battery condition, charging and running costs, and vehicle provenance together in a single report.
Why This Matters Now
The timing is no accident. Electric vehicles are taking an ever-larger share of the UK market, registrations are climbing year on year, and new petrol and diesel car sales are due to end in 2030. The first big waves of EVs are now reaching their second and third owners, and every one of those sales carries the risk of undisclosed battery degradation.
This cuts both ways, and that's what makes it interesting. EV All Day cites UK market research suggesting buyers pay several hundred pounds more for a used EV with evidenced battery health, and that those cars sell noticeably faster. So the check isn't just protection for buyers. A private seller with a healthy battery can finally prove it, and use that evidence to support their asking price.
Get Started
- EV Battery Check: evallday.com/checks/ev-battery-check, £9.99
- Used EV Check: evallday.com/checks/used-ev-check, £9.99
- Service history check: ServiceStamp, £9.99
Whether you're screening listings before a viewing, selling an EV with a battery worth shouting about, or appraising electric stock for the forecourt, an independent battery read is now a £9.99 question rather than a leap of faith.
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- Check Service History: Manufacturer dealer records from £9.99
- EV Battery Check: Battery health, range and warranty from £9.99