Stunning Developments in Electric Vehicle Battery Health: What You Need to Know

A comprehensive new study reveals that the average electric vehicle (EV) in the UK retains over 95% of its original battery capacity, leading to a promising outlook for used electric cars. Conducted by UK diagnostics specialist Generational, the report dispels common fears surrounding battery deterioration, proving that many consumers have less to worry about than once thought.

The State of Electric Vehicle Batteries

The findings from the 2025 Battery Performance Index, which analyzed over 8,000 electric cars and vans across 36 brands, indicate that EV batteries are significantly outperforming expectations. The average State of Health (SoH) stood at an impressive 95.15%. Oliver Phillpott, CEO of Generational, emphasized that the “Battery transparency is now the main factor defining risk in the used market.” This new data trajectory equips potential buyers with valuable insights into EV longevity and performance.

What This Means for Used EV Buyers

In practical terms, these findings suggest that individuals considering the purchase of a used electric vehicle, particularly those under five years old, might not encounter any substantial drop in range. Research indicates that even eight-year-old models maintain performance levels well above warranty thresholds, making them reliable options for buyers.

However, the study also underscores the importance of battery health verification, advising prospective buyers to not solely rely on vehicle mileage as a gauge of battery condition. Obtaining a battery health certificate or diagnostic report has become essential in ensuring a fair price and optimal performance in the long run.

Key Takeaways

The implications of this study extend beyond mere statistics. As Philip Nothard, chair of the Vehicle Remarketing Association, noted, "You need to trust that this expensive component will meet your needs.” The emphasis on transparency empowers consumers, giving them the confidence to make informed decisions about purchasing used electric vehicles.

In conclusion, this study paints an optimistic picture for the future of electric vehicles in the UK. With used EV batteries proving to hold up better than previously assumed, now is an excellent time for consumers to consider transitioning to electric options without the worry of significant performance losses.