My Results After Using the iPhone 80% Battery Limit for 3 Weeks
I set the 80% charge limit in Settings and used it for 3 weeks, but there was hardly any noticeable difference. If anything, I just felt like I was running low on battery more often in the middle of the day. The battery cycle count went up by 40, but that doesn't seem to mean much.
4 answers
Oh, I didn’t know this. I thought limiting it to 80% was a good thing, but if you don’t feel any difference, then isn’t the iPhone feature that automatically charges only up to 80% ultimately a similar effect?
Well, I'm not so sure about that. Three weeks is too short to judge, and battery lifespan is affected more by how long it stays at a given charge level and by temperature than by cycles. I'm also not sure whether the "40 more cycles" is an accurate before-and-after comparison. I think this is something we'd need to watch for at least a few months.
Isn't that old news? These days, iPhone battery management features optimize things automatically on the system side, so I don't see why you'd need to manually cap it at 80% and stress yourself out.
I've also been using the 80% limit for over a month now, and I'm satisfied with it. That said, I'm always in a place with a charger during the day, so it doesn't matter for me, and I only charge to 100% on days I go on business trips. I think it depends on the situation. There are also a lot of posts saying that filling it all the way to 100% makes the heat go up, so that's actually worse lol