EV Batteries Outlast Driver Fears
▼ Summary
– A new study by Aviloo reveals that electric vehicle batteries retain approximately 90 percent of their original capacity after 150,000 kilometers.
– This finding addresses common driver concerns regarding long-term battery durability despite the surge in global EV sales.
– The median state of health for 20 popular EV models ranged from 87 to 94 percent at 150,000 km and higher at lower mileages.
– Battery degradation rates vary significantly based on climate conditions, battery size, and specific driver habits like parking practices.
– Unlike combustion engines where age dictates value, EV condition depends heavily on usage history which is often unknown to potential buyers.
Electric vehicle batteries are proving far more durable than skeptics anticipated, with new data revealing that most used EVs retain approximately 90 percent of their original usable capacity after reaching 150,000 kilometers. This finding directly challenges the long-standing anxiety among drivers who worry about battery degradation when considering a switch from internal combustion engines to electric powertrains.
Despite a global surge in EV sales driven by rising fuel costs, concerns over long-term battery health remain a primary hesitation for potential buyers. To address this, manufacturers typically offer warranties covering eight years or 100,000 miles (160,000 km). These agreements generally require a replacement if the battery’s capacity drops below 70 percent, setting a clear benchmark for acceptable performance over time.
Real-World Durability Data
A recent analysis by Aviloo, an Austria-based firm specializing in battery health diagnostics, provides concrete evidence supporting the longevity of modern EV batteries. The study examined the median state of health (SoH) for 20 popular EV models, including Tesla’s Model Y and Volkswagen’s ID.4. SoH measures the remaining percentage of a battery’s original usable capacity. After 150,000 kilometers, the median SoH for these vehicles ranged between 87 percent and 94 percent.
The data shows consistent high performance across different mileage thresholds. After 50,000 kilometers, the median SoH stood between 91 and 97 percent. By the 100,000-kilometer mark, it remained robust at 88 to 95 percent. These insights are drawn from more than 500,000 tests conducted globally on the selected models between 2022 and 2026. It is worth noting that the study excluded Chinese models due to insufficient available data.
Factors Influencing Degradation
While the overall trend is positive, the study highlights that battery degradation is not uniform. Even within the same EV model, the rate of decline varies significantly based on several factors. Climate conditions, battery size, and specific driver habits, such as parking practices, all play critical roles in determining how quickly a battery loses capacity. This variability underscores the complexity of predicting individual battery health compared to traditional mechanical components.
Marcus Berger, chief executive of Aviloo, emphasized this distinction in his assessment of the market. “In contrast to a combustion engine car, where age and mileage would more or less carry the value of the car and technical condition, that’s not the case for an EV,” said Marcus Berger. He further explained the uncertainty inherent in the used EV market: “The car might look the same,same age, same mileage,and you don’t know how it has been treated.”
(Source: Ars Technica)
