Any SOC targets (less than 80%) to avoid?

[roger-on-taycan]

I've been thinking of setting my regular charging target to less than 80%. I'd still get plenty of range for the amount of daily driving I do. I've heard that keeping the battery in the 40-60% range minimizes degradation. (I tend to keep my cars forever, and the range of our 2019 e-tron seems to have dropped noticeably in the time we've owned it.)

Now and again I've heard people say that certain cell chemistries have "stress points" at a particular SOC, where keeping the battery at that level is harder on the cell than below or above it. Does anybody know if there's anything to that? (It sounds dubious to me, but I'm not a battery tech.)

Sponsored