iPhone XR, on iOS 13.5.1. For many months, my phone did what it's supposed to do with optimized charging: It would charge to 80% and then stop there and not finish charging until like 5 in the morning (I know this by having looked at the battery charge bar chart). Worked like a charm. But some recent update or something seems to have broken that and now every single night it shoots straight to 100% and stay that way all night. This, despite the fact that I still keep the same *time* schedule as before (bedtime, work alarm for morning). Admittedly, I don't go into the office anymore since March so my locations are different. But March was a long time ago now.
Anyone else notice this? Does it have to completely re-train itself after every x.x.x release?
Anyone else notice this? Does it have to completely re-train itself after every x.x.x release?