Shocking Truth: UK Electric Car Batteries Are Holding Up Better Than You Think!

A recent comprehensive study from UK EV battery diagnostics specialist Generational reveals that electric car batteries in the UK retain more than 95% of their original capacity, challenging long-held fears about battery degradation in used electric vehicles. This study, which analyzed over 8,000 electric cars and vans across 36 brands, offers a reassuring perspective for potential buyers concerned about battery health.

Understanding the Findings

With battery performance being a critical factor for electric vehicle buyers, the findings of the 2025 Battery Performance Index are significant. The average battery State of Health (SoH) was determined to be an impressive 95.15%. Oliver Phillpott, CEO of Generational, emphasized that, “EV batteries are performing far better than many consumers and industry stakeholders have been led to believe.” This insight is crucial, especially for those considering the purchase of used electric vehicles.

The Benefit for Buyers

For anyone in the market for used electric cars, the results provide good news: vehicles younger than five years generally show no notable loss in battery range. Even electric cars that are eight years old tend to perform above warranty levels. Therefore, potential buyers can feel confident about the reliability of these vehicles, as reports suggest that battery failure is rare for cars around three to five years of age.

Navigating the Electric Vehicle Market

This study doesn’t just highlight optimistic trends; it also provides valuable guidance for navigating the electric vehicle market. With a growing disparity in performance among batteries as vehicles age, consumers are encouraged to request battery health certificates or diagnostic reports before making a purchase. This due diligence will ensure they know the true condition and value of their potential new car.

Overall, this study sends a powerful message: the landscape of used electric vehicle batteries is more favorable than many had imagined. By ensuring battery health transparency, consumers can purchase with greater confidence, knowing that their investment in an electric car will serve them well even as it ages.