The UK’s electric vehicle transition may ultimately succeed or fail not in new car showrooms, but on forecourts selling second-hand models. That is the clear conclusion of new research which suggests consumer confidence in used electric cars remains stubbornly low, despite growing evidence that modern EV batteries are far more durable than many drivers believe.
A nationally representative survey conducted by the AA in partnership with Electrifying.com in December 2025 paints a stark picture of public perception. Just three per cent of drivers say they feel confident buying a used electric vehicle, while only two per cent believe an EV battery typically lasts longer than a petrol or diesel engine. Those figures come at a critical moment for the market, as policymakers increasingly rely on the used sector to drive mass adoption.
With used cars accounting for around 75 per cent of annual vehicle sales in the UK, industry experts warn that failure to address battery anxiety and perceived risk could significantly slow the pace of electrification, regardless of how many new EVs manufacturers bring to market.
Battery fears driving hesitation
Concerns around battery longevity remain the dominant psychological barrier. While real-world data increasingly shows that modern lithium-ion batteries degrade more slowly than expected, public understanding has not kept pace. According to the survey, 38 per cent of drivers say a formalised battery health certificate would make them more likely to buy a used electric car, underlining the importance of transparency and reassurance.
This confidence gap is particularly striking given that most EVs sold in the past decade are still covered by manufacturer battery warranties. Under the UK’s Zero Emissions Vehicle (ZEV) mandate, manufacturers are required to provide an eight-year or 100,000-mile warranty on traction batteries — protection that typically extends well into a vehicle’s second ownership.
Edmund King, president of the AA, said the findings show how perception rather than reality is holding buyers back.
“The AA’s latest UK EV Readiness Index shows that the conditions that support drivers’ shift to EVs remain challenging for many,” he said. “A big uptick in the sales of used EVs would be a game changer. Drivers need convincing on battery longevity before buying used EVs but should be reassured that the ZEV mandate requires manufacturers to provide an eight-year or 100,000-mile battery warranty which will cover most used EVs.”
Evidence points to durability — with caveats
Independent data increasingly supports the argument that batteries are not the short-lived components many consumers fear. Recent analysis from Geotab highlighted by WhichEV shows that fast charging, rather than age or mileage alone, has emerged as the biggest contributor to battery degradation. Vehicles that rely heavily on rapid DC charging tend to show higher rates of capacity loss than those predominantly charged at home on slower AC connections.
This finding is significant for the used market. It suggests that battery condition is highly dependent on usage patterns rather than simply years on the road — strengthening the case for transparent, vehicle-specific battery health reporting rather than broad assumptions about lifespan. For prospective buyers, a clear picture of how a particular car has been charged and maintained could be more meaningful than headline mileage figures.
It also challenges the lingering narrative that EV batteries inevitably fail prematurely. In many cases, degradation remains modest even after high mileages, often leaving vehicles with more usable range than required for typical daily driving.
Calls for standardised battery health checks
Electrifying.com chief executive Ginny Buckley argues that the policy focus has been misplaced for too long.
“I’ve long argued that the real engine of the EV transition is the used market, yet policy continues to focus almost exclusively on new cars,” she said. “This data shows the next phase of adoption won’t be driven by grants for a select group of new EVs, but by building trust and confidence in the used cars that most drivers buy.”
Buckley is among those calling for standardised, independent battery health checks, potentially integrated into existing regulatory frameworks such as the MOT. The MOT already includes non-safety-related checks, such as mileage recording and number plate inspections, establishing a precedent for information-based reporting that could be extended to battery condition.
Supporters argue that a consistent, industry-wide battery health certificate would reduce uncertainty, protect consumers and help stabilise residual values — benefiting dealers, lenders and manufacturers alike.
Tesla pushes for transparency
Some manufacturers are already moving in that direction. Tesla, which has long monitored battery health through onboard diagnostics, says transparency is essential if scepticism around used EVs is to be overcome.
Mark Smith, Head of Fleet and Used Cars, Tesla UK and Ireland, said: “We understand that there may be some unwarranted scepticism across the industry. All our vehicles have a built-in tool for checking the health of the battery. We hope other manufacturers adopt this thinking, to benefit the transition to sustainable energy.”
Smith’s comments reflect a broader industry debate about whether battery health data should remain proprietary or be shared more openly with consumers and third-party platforms.
Cost no longer the main obstacle
Interestingly, the research suggests price itself is becoming less of a barrier — particularly in the used market. While 57 per cent of drivers say new electric cars cost too much to buy, that figure drops to 30 per cent for used EVs. This indicates that affordability is increasingly achievable, but uncertainty and perceived risk continue to deter buyers.
Targeted financial measures appear far more effective than headline incentives for new vehicles. Only nine per cent of drivers say the government’s electric car grant has encouraged them to consider buying a new EV. By contrast, 44 per cent say incentives aimed at used EVs — such as Scotland’s government-backed interest-free loan scheme — would make them more likely to buy one.
Since launching in 2011, the Scottish scheme has issued more than £230 million in interest-free loans, demonstrating how relatively modest interventions can unlock demand when paired with clear consumer protections.
Used market as the tipping point
Industry analysts increasingly see the used EV market as the decisive battleground for electrification. Early adopters have largely been won over, but mainstream drivers tend to be more risk-averse, cost-conscious and reliant on the second-hand market.
Without credible, standardised information on battery health, many potential buyers remain unconvinced — even as evidence mounts that modern EVs can outlast their combustion counterparts. Bridging that trust gap may prove more important than expanding charging networks or increasing new car subsidies in the years ahead.
As Buckley puts it, the challenge is no longer simply technological.
“If the government is serious about accelerating uptake, it needs to stop overlooking the used market and start supporting it properly,” she said. “Practical measures like requiring standardised independent battery health checks, better consumer education and access to low-cost finance would do far more to unlock demand.”
For an industry eager to move beyond early adoption and into true mass-market territory, restoring confidence in used electric cars may be the most important step of all.
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