Electric vehicle battery studies show high capacity retention

Extensive research into electric vehicle (EV) battery longevity suggests that degradation is significantly slower than many consumers fear. A large-scale study by the Austrian company Aviloo, analyzing over 500,000 real-world tests across North and South America, Europe, Australia, and Asia, found that even the least efficient models analyzed retained more than 86% of their original capacity after 150,000 kilometers.

Specific regional data highlights varying levels of performance. In Sweden, an analysis of nearly 10,000 batteries showed that most models maintained over 90% capacity after 100,000 km. Top performers included the Kia e-Niro and Hyundai Kona, which retained over 97% capacity. In the Canadian market, studies of vehicles after 150,000 km showed the Tesla Model Y maintaining a median State of Health (SoH) of 90.32%.

These findings aim to address common consumer anxieties regarding the resale value and long-term utility of electric vehicles. The data indicates that while battery health does decline, the curve of degradation typically slows down after the initial loss of capacity.