Please stop assuming that an EV battery is guaranteed to lose 20% of its range in the first three calendar years of operation. I drove a Chevy Bolt for 4 years

Please stop assuming that an EV battery is guaranteed to lose 20% of its range in the first three calendar years of operation. I drove a Chevy Bolt for 4 years, 48k miles, and I never noticed any range degradation, most likely thanks to the strong liquid cooling system for the battery and the inability to fast charge the Bolt faster than 1C (50-55kW fastest charging speed, 60-66kWh size battery means .75-88C) (https://en.wikipedia.org/wiki/Battery_charger#C-rate https://en.wikipedia.org/wiki/Battery_charger#C-rate) Some cars absolutely will degrade like you describe, but that is not a guaranteed outcome for every EV, given the differences in fast charging capabilities and battery cooling capabilities. I did not get my 238 miles EPA range on the Bolt in the winter, but I could easily get 200+ if I needed to squeeze out more range. I generally got closer to 150 miles not because I was forced to, but because my driving style and heating usage did not generally result in the highest efficiency.