AlanSubie4Life
Efficiency Obsessed Member
OT, my last post on this: This is not quite true in the region of 55%-65% for NCA packs (it is a bit higher for NMC/LFP packs - curves are different but they show a similar peak in “returns”). This is pretty well established now and empirical data indicates this is how Teslas behave with calendar aging (dominant contributor to aging for typical use). Except in extreme heat, there is not a huge benefit to lower charge levels until you keep the car below around 55% for NCA. It’s not smoothly diminishing returns, at all. Note that charging to 100% as needed is no problem at all; it has minimal impact. Just don’t keep it there. And keep cycles as shallow as possible (not as important, and prioritize keeping below the 55%). Again: storage charge level (time-averaged SOC) is most important.But it's increasingly diminishing returns for values of "better" as you drop down.
For further discussion can move to one of many threads on the topic (this is not the best example thread; search for @AAKEE posts for more options):
Does leaving a battery at low state of charge cause degradation or just inconvenience?
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