I wish they'd give us the option (on the iPhone and iPad as well) to arbitrarily set the maximum charge level. Just like on my Tesla, I'd like to be able to tell my phone not to charge above 80%.
Then 500M people complaining on Reddit that their phones only charge to 80% for some reason.
I just want the option to manually move that brick wall down a bit (they're already telling me exactly where it is right now, on iPhones at least, on the MacBook I ask coconutBattery).