What to Check When Buying a Used Electric Car

3 September 2026
6 min read
A used electric hatchback plugged into a home wall charger on a driveway while a buyer inspects the charging port.

Three checks matter on a used electric car that do not exist on a petrol one: the battery's state of health, how much of the battery warranty is left, and whether the battery came with the car or is leased separately. Everything after that is the same job as buying any used car, because an EV carries exactly the same finance, write-off, theft and mileage risks as a diesel estate.

Quick answer

  • Get a state of health figure from the car itself, a dealer battery check or an independent tester.
  • Find the battery warranty start date and mileage cap, and confirm it transfers to you.
  • Ask outright whether the battery is leased. Renault Zoe and some Nissan Leafs were sold that way.
  • Confirm the connector type and the maximum charging speeds, both AC and DC.
  • Run the ordinary history checks: finance, write-off, stolen, mileage, keepers, import.
  • Budget for tax, because electric cars have paid vehicle tax since 1 April 2025.

Part one: the checks that only apply to an EV

Battery state of health

State of health, usually shortened to SoH, is the battery's usable capacity now compared with when it left the factory. Some loss is normal and expected. Batteries tend to shed a little in the first year or two and then settle into a slow decline, so a five year old car with a healthy figure can be a better buy than a two year old one that has been rapid charged twice a day.

Where you find the number depends on the car. A Nissan Leaf shows capacity bars beside the charge gauge, and a missing bar is visible from the driver's seat. Several makes bury a figure in a service or engineering menu. On others you infer it from the estimated range at a known state of charge. Independent testers can produce a certificate through the OBD port, and franchised dealers for most EV brands will run a battery health check, sometimes as part of a used car inspection.

On the viewing itself, note the state of charge and the range estimate together, scale that up to a full battery, and compare it with the figure the car was quoted at when new. Expect a real world number comfortably below the official one, especially in winter.

Ask how it was charged
A car that lived on a home charger overnight has had an easier life than one rapid charged at motorway services every day and left sitting at 100 per cent. Neither history is a dealbreaker on its own, but it explains why two cars with identical mileage can have very different battery health.

Battery warranty and whether it transfers

Manufacturers warrant the traction battery separately from the rest of the car, commonly for around eight years with a mileage cap, and that cover normally transfers to the next owner. Three things to pin down before you buy:

  • The start date. Cover runs from first registration, not from the plate year. A car registered in December behaves like the older year.
  • What triggers a claim. Battery cover is usually written around outright failure plus capacity dropping below a stated level. Gradual loss above that line is not a warranty matter.
  • Any conditions. Some makers expect the car to have been serviced to schedule, or the annual battery health check to have been done. Ask the manufacturer directly with the VIN rather than taking the seller's word for it.

Connectors, charging speed and kit

  • AC charging: Type 2 is the standard socket for home and slower public charging. The car's onboard charger caps the speed, commonly at 3.6 kW or 7 kW. That number decides how long an overnight top up takes.
  • DC rapid charging: CCS is the standard on virtually everything sold new here for the last decade. The Nissan Leaf and a handful of others use CHAdeMO, and CHAdeMO points are thinning out on some networks.
  • Maximum DC rate: early cars can be capped at around 50 kW. That only matters if you do long trips, but when you do it matters a lot.
  • Cables: a Type 2 to Type 2 lead for public AC points and a three pin granny cable should both be in the boot. Replacements are not cheap, so treat missing cables as a price adjustment.
  • Heat pump: often an option rather than standard equipment. It makes a real difference to winter range on the cars that offer it, so check the original build spec instead of assuming. A car spec check shows the recorded specification.

Was the battery leased separately?

Early Renault Zoes, up to around 2019, were commonly sold with the battery on a separate lease, and Nissan offered a similar arrangement on some Leafs. You buy the car, and the manufacturer's finance arm keeps the battery and charges you a monthly fee for it.

That is not automatically a bad thing. The lease caps your risk, because the provider replaces the battery if capacity falls below the agreed level. But it changes what you are actually buying:

  • The monthly payment continues for as long as you own the car, and it is often tied to an annual mileage band.
  • The agreement has to be transferred into your name, which means a credit check and paperwork before the car is really yours to sell on.
  • Leased battery cars are worth less and take longer to sell, which is part of why they look cheap.
  • Some have had the battery bought out. Ask for written confirmation from the finance provider rather than accepting a verbal assurance.

A separate battery agreement does not always register against the vehicle the way hire purchase does, so ask for the paperwork as well as running a check. What a finance check will show you is HP, PCP and conditional sale recorded against the car itself, which matters just as much on an EV as on anything else.

Ready to check a car?

Enter the registration and get the key facts before you commit to the car.

No account needed • Apple Pay accepted

Part two: the checks that apply to any used car

This half is where most of the money gets lost, and it is identical for an EV. Same DVLA record, same MOT record, same finance and insurance databases.

Finance, write-offs and theft

EVs have been sold overwhelmingly on PCP, so a large share of used examples have been through a finance agreement at some point. Most are settled properly. The ones that are not stay attached to the car, and the finance company can recover the vehicle from a buyer who did nothing wrong.

Write-off markers deserve extra attention on an electric car. Repair costs are high and a knock anywhere near the battery pack can total a car that looks superficially fine, so an EV can be written off after damage that would be a straightforward bodyshop job on a petrol hatchback. Cat S means structural damage was recorded, Cat N means non structural. Run a write-off check and read the marker properly rather than dismissing it.

Mileage and MOT history

Electric cars take an MOT at three years old like everything else, so the mileage trail exists in full. There is no emissions test, but the brakes, suspension, steering, lights, tyres and structure are all inspected. Two EV specific things to look for in the advisories: corroded discs, because regenerative braking means the friction brakes get used lightly, and tyre wear, because these cars are heavy and go through rubber. You can read the history free on GOV.UK, or see it with the readings laid out in our MOT check.

Low mileage is not the trump card it is on a petrol car. Batteries age with time and temperature as well as use, so a barely driven example that spent five years plugged in at 100 per cent is not obviously better than an average mileage one.

Imports

Imported EVs are common, particularly Japanese market Leafs. An import can be a sound buy, but the warranty position is different, UK service history may not exist, the connector and equipment can differ from the home market car, and the resale audience is smaller. The import marker appears on the DVLA record, and an import check tells you now rather than at resale time.

Vehicle tax

Electric cars pay vehicle tax. The zero rate ended on 1 April 2025 and EVs moved into the standard system, with the additional rate for cars above the list price threshold now applying to newer ones as well. Budget for it instead of assuming the car is free to tax, and check the current rate and status on GOV.UK. Our guide to car tax bands explains how the system fits together.

What we can and cannot tell you

Carpeep does not report battery state of health. No registration lookup can, because that figure lives in the car's own battery management system and shifts with every charge. Get it from the car, from a dealer battery check, or from an independent test.

What a car history check gives you for £15 is the paperwork half of the job: outstanding finance, write-off markers, police stolen markers, the mileage recorded at every MOT with discrepancies flagged, the full MOT history, keeper history with dates, plate transfers, colour changes, import and export markers, scrapped markers, the VIN cross-reference, tax status and the recorded specification. Do that part first, because a car with finance owing on it is not worth driving.

Key takeaways

  • Battery state of health, remaining battery warranty and connector type are the EV specific checks.
  • Battery warranty usually transfers to the next owner, but confirm the start date and conditions with the manufacturer.
  • Early Renault Zoes and some Leafs have a leased battery with a monthly fee that carries on after you buy.
  • EVs still take an MOT at three years, so the mileage trail is there, and they have paid vehicle tax since 1 April 2025.
  • Carpeep does not report battery health. It reports finance, write-offs, theft, mileage, keepers, imports and identity.

About to buy that car? Check what's hiding first.

Hidden finance and write-offs won't show up on a test drive.

Instant results • All checks included

Share this article