A new study of more than 22,700 electric vehicles suggests that EV batteries may outlive many drivers’ expectations. According to data analyzed by Canadian telematics firm Geotab, battery degradation averages just 2.3% per year, meaning a typical electric car battery retains roughly 75% of its original capacity after 13 years of use.
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A new study
While battery life estimates are often theoretical, Geotab’s latest report is based on real-world usage, not laboratory testing. The company has been tracking EV battery performance since 2020, and in its most recent 2025 report it analyzed aggregated data from over 22,700 electric vehicles spanning 21 brands and models.
This large, diverse dataset makes the findings particularly relevant for consumers considering an EV purchase. It also offers a more accurate reflection of how batteries perform under everyday driving conditions.
Geotab’s analysis found an average annual degradation rate of 2.3%. If this trend continues, the average EV battery will still retain about 75% of its original capacity after approximately 13 years.
In practical terms, this means that after more than a decade of daily use, many EVs will still offer a significant portion of their original driving range. For most drivers, this level of performance remains sufficient for routine commuting and everyday needs.
Battery life exceeds typical ownership period
The study’s findings become even more significant when compared to typical vehicle ownership patterns. A 2024 study from U.S. insurance company The Zebra found that the average American keeps a car for about eight years.
Based on this benchmark, EV battery life clearly exceeds the average ownership period, reducing the likelihood that drivers will face an expensive battery replacement during the normal life cycle of the vehicle.
Geotab also notes that battery degradation is not uniform across all EVs. The rate of decline can vary depending on:
- Vehicle model
- Charging habits
- Climate
- Driving style and usage patterns
One key factor is the use of DC fast charging. Frequent fast charging tends to accelerate degradation because it raises battery temperature during charging. In contrast, Level 2 AC charging is gentler and tends to be less damaging over time.
Myths vs Reality
| Myth | Reality |
|---|---|
| EV batteries only last a few years | Real-world data shows batteries can last more than 13 years |
| Range becomes unusable after a few years | After 13 years, batteries still retain about 75% capacity |
| All EV batteries degrade the same way | Degradation varies by model, climate, and usage |
| Fast charging does not affect longevity | Frequent DC fast charging accelerates degradation |
| Batteries must be replaced during normal ownership | Battery life often exceeds average ownership period |
| EV batteries lose value quickly | Longer battery life supports better resale value |
Environmental and technological implications
In Geotab’s 2024 report, the average degradation rate was slightly lower at 1.8% per year. The increase to 2.3% in 2025 is attributed to a larger sample size and wider use of fast charging in the more recent data.
The finding that EV batteries can remain functional for over a decade also strengthens the environmental case for electric vehicles. Previous studies suggest EVs can offset the emissions associated with their production within about two years of use compared to internal combustion vehicles.
In addition, emerging semi-solid-state battery technology promises further improvements in longevity and stability. If these technologies become mainstream, they could further enhance battery life and boost the residual value of EVs.
