- Tesla’s own test showed 88% battery health after just 18 months and 13,162 miles.
- The Model Y displayed 302 miles at full charge, down 36 miles from when it was new.
- DC charging and parked energy use may be factors, but mileage alone doesn’t explain the loss.
Dissecting electric vehicle battery degradation tests is never boring or predictable. While there are patterns you start to see after poring over dozens of these pack health tests, there are occasional outliers that. Sometimes, high-mileage EVs have a lot more capacity left than you’d think, while others appear to exhibit accelerated degradation and range loss.
