Lots of posts about making your "battery last longer" when on an iPhone Apple Store only charges a mere $49-$69 to get a battery replacement. My iPhone 11 sits at 84% capacity over 3 years and the plan is by end of year hand to daughter or trade in for iPhone 14.
I will only state I don't think about battery charge except when low then put onto my MacBook Pro 90W Usb-c charger I found and it gets to 50%in 30mins. It seems to slow down after that. Th
Neat idea on carbon footprint to pilot feature for likely future of peak energy rates.
I did the battery replacement through Apple on my old iPhone 8 and it got some of the life back but I think Apple’s new software updates really tax (intentional or not) the older model phones. It was a new battery but didn’t have anywhere the life that the phone had when new. Still, for $49 or whatever it was I got another year or so out of it.