My launch day 11 Pro is down to 93%.
It was falling consistently for a while and I was always recharging it when it would hit around 35% and then I’d only go to 80%. I used the Apple OEM USB C fast charger that came with it.
But I also have an old AW3 that I’d only use 50% of the battery life on and then would put on a charger all night.
And it still shows 100% battery health.
Eventually I found this article which is one of the best I’ve ever read on battery health.
Worrying about your battery’s health might not be worth the hassle.
www.nytimes.com
After reading it, I started to not let my iPhone battery level drop below 50% and would recharge up to under 100% on the fast charger. Sure enough my battery health stopped dropping and it’s been at 93% for a while.
The problem though is that if you use your phone a lot you’ll need to recharge it all the time.
One solution I’ve come up with is to recharge above 50% as much as possible but if I’m out and need to use more and drop below that then I don’t stress about it. It will wear the battery health down over time but do it much a a much slower rate.