Hi; I was dumb and didn't really give myself a lot of leeway regarding battery capacity and range, so loss of capacity over time will be bad for me. Oops. I know a range charge (100%) is worse for your battery life than a standard charge (90%), and I assume 90% is worse than 80%, and 80% worse than 70%, etc., but my question is "how much worse?" Part of the joy of this car in comparison to other EVs is not having to worry about range. If charging to 80% saves me 1% of battery capacity after 100,000 miles then its not really worth it, but if it saves me, say 5% after 50,000 miles, then I'd probably bite the bullet and go through the trouble of charging to 80 or 70 and adjusting every night if I plan on a trip the next day or something. Apologies is this question has been asked before. P.s. I know the S hasn't been around so long that people will have empirical evidence about this; I think I'm asking the question to people who know anything about battery technology in general. If charging to 90% for 100,000 miles is expected to decrease battery capacity by X%, then charging to 80% for 100,000 miles would be expected to decrease battery capacity by what%? i.e. where does the diminishing returns on charging less every night get to the point where it's not worth the hassle anymore?