Although the thought of getting an electric car has passed through my mind on a few occasions, I'm not 100% familiar with the intricate technical details. (for some reason, the tax incentives where I live are still in favor of continuing with the small petrol car I have. Taxes are primarily a function of weight in the Netherlands, and anything besides a lightweight Dacia Spring would imply significantly higher monthl…
Low use vehicles have degradation of 1.5 % a year, heavily used vehicles mostly slow charged had degradation of 2.2 % a year and heavily used vehicles mostly fast charged had highest degradation of 3 % a year.
Now before you think that means the capacity will halve in X years (33, 23 and 17), the article also notes that the degradation is not linear and it was faster in new vehicles and then slowed down - with no way to know if it will slow down further or continue in this manner, etc, until we have a sufficient sample of 20 years old modern EVs.
Link to article https://www.geotab.com/blog/ev-battery-health/