A lot has changed in the world of electric vehicles over the past five years. When we analyzed EV battery health (and published the original results in this blog post) in 2019, we found EV batteries degraded, on average, at 2.3% per year. Of course, some EVs performed better and others less well, but the average was surprisingly good. In 2024, we performed a new analysis and the results indicate that EV batteries have improved significantly, degrading at 1.8% per year on average. So how long do EV batteries last? Geotab research shows that EV batteries could last 20 years or more if they degrade at an average rate of 1.8% per year, as we have observed.
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Whoa, that's really good news!














