I understand that batteries have gradual degradation. But they will gradually degrade to the point where range is substantially impacted and that is the time y

I understand that batteries have gradual degradation. But they will gradually degrade to the point where range is substantially impacted and that is the time you have to look at selling the car or replacing the battery. Again, I live in a rural area and a vehicle with 150 mile range would not be worth much. The problem is compounded by the harsh winters where I live. It was -35C here last week and that 150 mile range in summer is noticeably impacted in winter.