Study shows that frequent fast charging reduces the longevity of electric car batteries
A recent study indicates that while electric car batteries show reasonable durability, frequent use of fast charging can negatively impact their lifespan.
As the market for electric vehicles (EVs) grows, concerns about battery durability after warranty periods are becoming increasingly prominent. A recent study by Geotab, a U.S.-based fleet management company, analyzed data from 22,700 vehicles of various brands and models. The findings for 2025 indicate an average degradation rate of 2.3% over the year, which is within acceptable limits. However, this performance could potentially be improved if not for the increasing frequency of fast charging, a trend that has become common among users.
In 2024, when there were fewer DC (Direct Current) fast chargers available, the average degradation was noted to be lower at 1.8%. This suggests that the introduction of more fast charging stations has made EV users more reliant on quick charging solutions, which can hasten battery wear. Geotab's latest data imply that while current battery longevity outmatches the expected replacement cycles outlined in fleet planning, changing charging habits are having a measurable impact on battery life.
As we move forward, the implications of this study will be significant for both consumers and manufacturers in the electric vehicle market. It points to a need for educating EV owners on charging practices that help prolong battery life, as well as possibly influencing future designs of charging infrastructure. Ultimately, managing charging habits effectively could lead to better battery performance and longevity, ensuring that electric vehicles remain a sustainable option in the auto industry over the long term.