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Worries about rapid EV battery degradation often come up in conversations about EVs, especially because many people base their expectations on how other lithium ion batteries, like those in our cell phones, behave. However, real-world data shows most batteries last longer than people fear. Understanding how usage, charging habits, and climate affect degradation can help owners maintain battery health and reduce anxiety.
While some drivers report substantial range loss after a few years, these fears may be overblown or reflect poor understanding of how external factors, like cold weather, temporarily affect range. Recurrent's data from over 30,000 US drivers shows that most EVs retain at least 90% of their original range after 100,000 miles, and an average of 97% of their range over the first three years.
The science on battery degradation also shows that it is not linear; it slows as the battery ages. For example, a Tesla Model 3 often loses about 5% range in the first 25,000 miles, but then the decline levels off considerably.
Lots of factors contribute to battery health:
- Battery pack age
- The software and temperature management systems in the EV
- Temperature extremes
- Keeping your battery at full or empty for long periods
Real-world data shows that most EVs, even older and high mileage cars, remain practical for daily commutes far longer than critics claim.
Moreover, software updates or changes in charging habits can sometimes slightly improve range or at least slow further degradation.
If your battery does degrade, most manufacturers offer 8-year/100,000-mile warranties for significant capacity loss (often defined as dropping below 70%).
Proactive owners can connect their vehicle to Recurrent for ongoing monitoring.
