Earlier quoted context omitted.
Sure, but if I know I won't drain my battery more than 10% that day, I can't tell it not to top it up more than 80%. That's the case for me 99.9% of days. This also seems to work only if you've drained the battery below 80%. If it says 90% and I plug it in? It'll charge it fully right away.
That's not how Apple's implementation works. It doesn't charge the battery over 80% at all, unless it detects that you have a normal waking time, in which case it charges fully right before you normally wake up. Unfortunately, other companies copied the 80% charge bit without copying the part about figuring out if you have a normal waking time and giving you a full charge right before that. For instance, Samsung's S2…
My iPhone disagrees with you. I go to bed and wake up at just about the same time. If I somehow managed to drain the battery below 80%, when I plug it in, it'll charge to 80 and then tell me that by the time I wake up in the morning, it'll be fully charged. Which is the case.
But the most common use case, for me, is waking up, leaving the phone plugged in (WFH). Maybe go for a walk around noon, snap a picture or two. Forget to plug it back in and get back to work. Plug it in as I go to bed at 95%. It tops right up, doesn't wait until the morning.
> Unfortunately, other companies copied the 80% charge bit without copying the part about figuring out if you have a normal waking time and giving you a full charge right before that.
But that's actually what I want. With very, very rare exceptions, I never need a full charge on my phone. Hell, until a few weeks back, I was rocking an iphone 7 with a battery in a questionable state (started bulging). That thing never went below 60% with my use patterns. 60% meant night out, so a hefty dose of maps use. Normal days, it didn't go below 85-90%.
I think the issue is that Apple expects that when you wake up in the morning, you unplug your phone for the day and actually use it a significant amount. Which isn't my case at all. If I don't leave my house, it'll stay plugged in. I usually forget about my phone since everything I need to do, I do on my computer. For the occasional phone call, I can either keep it plugged in (the cord is long enough) or it's already connected to my headset, so don't even need to go fetch the phone. If I don't go to work, it can stay plugged in for days on end (I don't always grab it when I go out).