No, I'm not going to go out and take my battery through some cycles to get the BMS to indicate max range. But I did provide this to you a few months ago when I was running my charge to 100%.
No need to drive or even charge it.
Just take a picture of the energy screen+ SOC after a regular charge you would do anyway.
This will sort out any initial range or changed constant issue.
Very easy, very concrete.
AFAIK, there is absolutely nothing that says that a battery can't be left at 80% for 10 years and maintain it's capabilities.
Yes it is.
For now all chemistries of lithium batteries behave quite close when it comes to calendar aging.
If we have hundred of research reports showing a very similar degradation vs SOC and temperature, its very very probable that our car will follow this closely.
We have examples not too old of actual tesla cells being taken iut of cars, showing the same thing.
I bought Panasonic 2170 ( ~ model 3 cells) cells from two batches and did run them for 1.5 years calendar aging from early 2022. Cycled and measured the capacity each two months.
Initially I planned to make a own chart but there is no need to, as my result fits very very close to all the existing ones.
What does exist is that some chemistry and construction techniques make it hard for it to happen.
Even if they improve the cell chemistry with things that reduce the rate of degradation the basic behavoiur is only slowed down but still happening in the same chrmical physical way.
80% causes about the same degradation as 100% as calendar aging is concerned.
All this is facts, from a lot of research.
If you state that you can keep it at 80% with very low degradation you’d better show data for it, and sources for such a statement.
A good thing to start with would be your varas data on a picture.