Skip advert
Advertisement

It’s time to be clear and honest about battery health on used electric cars

Paul Barker explains why sellers need to be clearer about battery degradation in order to give used EV buyers a confidence boost

Opinion - used EV battery health

It feels increasingly like the key to the whole electric car market is getting sales of used EVs fired up, and that made me think about how to encourage second-hand buyers to look more closely at moving to EVs. 

We all know that, for now at least, you need to be able to home-charge for EVs to make sense, but as long as you can, a recent chat with Polestar’s UK boss, Matt Galvin, drummed home an important point. 

Advertisement - Article continues below

Manufacturers and dealers need to do more to help themselves, and dispel myths about used EVs. And a big one for used-car buyers is the state of the battery. 

Galvin admitted that his brand doesn’t make enough of the battery health check that accompanies every pre-loved Polestar, especially because that’s a key area where used buyers’ hearts and minds haven’t yet been won over. According to Galvin, the cars are showing very little degradation after a couple of years. 

That’s backed up by a quick look at Auto Express’s used-car marketplace. Few dealers publicise the battery health on their main advert picture, but kudos to Frosts4cars for making it really clear! At the time of writing, that dealer had a 2020 Peugeot E-2008 with almost 57,000 miles on the clock for £10,995, with a battery still at 89 per cent of its original capacity.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Given the scaremongering about battery degradation, I’d say there’s plenty of life left in a car that’s losing less than two percentage points a year. A Renault Zoe from the same dealer was down at 86 per cent after six years and 12,400 miles, but that’s still nowhere near triggering battery warranties that tend to be around 70 per cent of original capacity after seven years. 

We’re all used to the semi-disposable nature of smartphones, where battery health can become a big issue as you head into the third year and beyond, and that’s the sort of experience people who don’t know EVs are bringing with them. 

Battery health is such a key piece of info in terms of changing minds and giving people the confidence that a used EV won’t be worthless after a couple more years. And it’s up to car makers and dealers to make it easier for buyers to see that information.

Used EVs can be a bit of a bargain because the demand isn’t matching new-car sales, but that won’t change until people know they can be confident that a car’s battery is going to last. So if you’re considering a used EV, make sure the battery health check is high on your list of questions. 

Buy a car with Auto Express. Our nationwide dealer network has some fantastic cars on offer right now with new, used and leasing deals to choose from...

Skip advert
Advertisement
Paul Barker - editor, Auto Express
Former editor

As the former editor, Paul’s job was to steer the talented group of people that work across Auto Express and Driving Electric, as well as guiding the titles to even bigger and better things by bringing the latest important stories to our readers. Paul has been writing about cars and the car industry since 2000, working for consumer and business magazines as well as freelancing for national newspapers, industry titles and a host of major publications.

Skip advert
Advertisement

Recommended

Range Rover Electric and Dacia Spring are EV extremes but I've found the sweet spot
Opinion - EV sweet spot

Range Rover Electric and Dacia Spring are EV extremes but I've found the sweet spot

Mike Rutherford believes he's figured out the trick to getting the best EV bargain
Opinion
20 Sep 2026
Renault’s design future: concept car, new Rafale and new Scenic to aim for audacity
Renault 2026 Goodwood Festival of Speed

Renault’s design future: concept car, new Rafale and new Scenic to aim for audacity

Alexandre Malval, the new head of Renault brand design, vows to deliver family cars with personality, audacity and great proportions
Features
19 Sep 2026
Chinese cars now beat mainstream models on depreciation, just about
Omoda E5 and Jaecoo E5

Chinese cars now beat mainstream models on depreciation, just about

If you thought Chinese cars would depreciate hard, think again. They’re predicted to be fractionally ahead of non-Chinese brands for average retained …
News
18 Sep 2026
Rising prices are forcing us into older cars, don't tax them as well
Opinion - Rutherford don't tax older cars

Rising prices are forcing us into older cars, don't tax them as well

Mike Rutherford argues that the tougher emissions rules must reflect that millions of Brits rely on older cars every day
Opinion
13 Sep 2026

Most Popular

New Dodge Charger 2026 review: real US muscle makes some UK sense
Dodge Charger Sixpack - front cornering

New Dodge Charger 2026 review: real US muscle makes some UK sense

The Dodge Charger is both characterful and practical, but it's likely to be a rare sight on UK roads.
Road tests
17 Sep 2026
New Mercedes C-Class Electric gets a bittersweet range boost
Alastair Crooks with the Mercedes C-Class Electric

New Mercedes C-Class Electric gets a bittersweet range boost

New model has launched in Germany but won’t be coming to the UK
News
17 Sep 2026
Car Deal of the Day: A fully-loaded Range Rover Evoque is now just £455 a month
Range Rover Evoque P300e Autobiography - full width front

Car Deal of the Day: A fully-loaded Range Rover Evoque is now just £455 a month

Not often do we feature a Range Rover, but today is an exception. The top-spec Evoque is our Deal of the Day for 18 September.
News
18 Sep 2026

Find a car with the experts