iphone 12 pro max battery health degrading

But I don't really go to sleep even when I plug it in at 11 PM... I know that's on me, but I'm tempted to use it. I also did a test once where I didn't use it at all while charging and it took about the same amount of time to finish as when I did use it.

crystal_star wrote:

But I don't really go to sleep even when I plug it in at 11 PM... I know that's on me, but I'm tempted to use it. I also did a test once where I didn't use it at all while charging and it took about the same amount of time to finish as when I did use it.

Some potential options for that, irrespective of batteries and charging:

Use Focus on your iPhone, iPad, or iPod touch - Apple Support

Use Bedtime to track your sleep on your iPhone - Apple Support

"There's no reliable trend that can be drawn here."

OK, but I've read many replies here stating that a trend of 1% less per month is normal: therefore, my trend couldn't be considered totally normal, since my battery has lost 11% of its full capacity in 9 months (9% in three months, from the end of June to the end of September).

I always close any unused app and I keep both power saving and optimized charging enabled, as well as disabling localization for any app that does not strictly need it to work.

Ok so i don't know if this has anything to do with my battery capacity, but here goes.

my battery has been charging really slowly recently (keep in mind I only charge 40% every day, from 60%-100%). it's taking a little over 2 hours to be exact, and i really don't know why. however, yesterday and the day before, it charged noticeably faster, even while i used it the entire time. it took only about 1 hour and 40 mins. my capacity hasn't dropped for over a month, so i really wonder if it's accurate now. today, it went back to charging super slowly even when i was NOT using it. i've had my iphone 12 for more than a year, so maybe that explains it, but why did it charge so "normally" for the last two days even when i never restarted or did anything to my phone? i have been using the exact same charger, brick, and wall plug. what is going on, exactly?

thanks, of course I will replace it, but that probably won't be for another 2 years when i get a new phone anyways. so there's really no specific way to make my battery charge faster, right? because if it can charge faster even while using it, that's mildly suspicious.

and yes, for the last two days before yesterday, my phone did charge quickly from 60%-80%, in about 40 minutes. it charged to 90% only about 15 minutes after it was 80% (I have on a shortcut that sends me a notification every time my battery reaches 70, 80, 90, and 100, so i know the time differences between two percentages). but yesterday, it took about 15 minutes longer even when i wasn't using it, so i don't think the part about charging quickly to 80% applied. it became more normal towards the end (by that i obviously mean faster), so it was really the beginning that threw it off. but still, there's really no one specific way to judge, correct?

yeah i don't know what i've been doing wrong, and i hope it's not the battery because the capacity is still the same, but my phone randomly restarted in the middle of a song i was listening to today, and i can't think of anything else other than the battery. again, the capacity is still above 90%. i tried doing some research, and all the articles i read mentioned a defective battery so i really wonder what happened? I hope not, and I don't want to keep reading, so what other factors are there besides defective battery and not enough storage? I am running on the latest version of iOS, by the way.

crystal_star wrote:

yeah i don't know what i've been doing wrong, and i hope it's not the battery because the capacity is still the same, but my phone randomly restarted in the middle of a song i was listening to today, and i can't think of anything else other than the battery. again, the capacity is still above 90%. i tried doing some research, and all the articles i read mentioned a defective battery so i really wonder what happened? I hope not, and I don't want to keep reading, so what other factors are there besides defective battery and not enough storage? I am running on the latest version of iOS, by the way.

iOS itself can crash, as can apps.

These crashes can be due to app flaws, due to OS flaws, and due to hardware flaws, and due to flaky network connections.

Add-on VPNs and add-on security products can cause network connections to be flaky.

Not enough storage, and the resulting storage corruptions that can then arise from insufficient storage.

Yes, batteries can cause crashes, so can a whole lot of other problems. If the iPhone crashes persist, contact Apple Support.

ps: Apple effectively has two “current” versions right now: 14.8.1 just arrived and 15.1 has been available for a bit.

Yes, will do. Does the capacity show anything related to that? And also, one strange thing that happened today, and I’m really worried about it because it’s the second bad sign with my phone that’s happened this week.

So I have on a shortcut that sends me a notification right when my battery hits 60% so that I can plug it in. I plugged in it no more than 10 seconds after i got that notification, but right when the plug connected to the phone, the battery percent dropped down to 59%. I got extremely suspicious because that has NEVER happened before, unless of course I waited for at least a minute and used more battery when it was at 60%. But NO, i didn’t open any apps after i plugged it in, so why did it drop from 60 to 59 in FIVE SECONDS?! Does this have something to do with what you mentioned? My battery has been acting normal the entire day.

What are you talking about? I have charged every iPhone I have ever owned over the past 14 years overnight, every night. My current Xr shows 94% maximum capacity, and it’s almost 3 years old. I typically keep phones for 3 years, and I have never had to replace a battery. Are you sure you know how to use a phone?

ToastyGhost11 wrote:

How long do you think it’s supposed to last? Charge it every night and don’t expect it to last six months! You ppl obviously don’t know how to use a phone!

I've had iPhones since the iPhone 4. I've sold them, I've been required as part of my job to teach people how to use them. And, I plug my iPhone in every night to charge. My batteries generally last around two years.

Yes, for the last few weeks I've been fine until today. Most of you probably won't think it's a big deal and I don't either, but I was just suspicious.

So basically, every Monday, I go to a class from 7-8 and I don't bring my phone because I don't have anywhere to put it. Everything has been normal for like a year and a half now. However, today, when I came back, my phone had dropped from like 60% to 50% in 1.5 hours. Usually, it drains like 1-2% at most WITH background activity. But mind you, this time, there was nothing going on at all.

As you can see, from 6-7 (first pic), I used my phone, so the battery dropped. But when I left it with absolutely NOTHING in the background, it dropped by a greater value between 7 and 8 (second pic) than it did between 6 and 7. Is it something about the new update? I got it a while ago, so I don't know why it would affect me this late, but what other factor is there?

So you're basically saying that optimized battery charging doesn't force your phone to be at a certain percent for it to charge at the "right" time? Doesn't it learn my routine? Why else would my battery drain drastically for no reason?

yes, i charge my watch overnight every night. is it possible for the housekeeping to last more than 2 days? because i got ios 15.2 last wednesday and didn't get watch os 8.3 until saturday. is the same thing happening for my watch?

my battery has been fine for about a week until today, when it dropped more than it should have in a given amount of time even with airplane mode on. i checked the battery usage bars and was very thankful that it dropped right before i used it at 9 AM, but this had never happened before. i saw the battery stay at 100 for about 9 hours, then drop right at the beginning of the hour again, even with airplane mode on. yesterday and every day before that, it lasted longer, for at least 9.5 hours (but at a different time of day). i'm not surprised about this because it's probably getting used to my wacky schedule that's been changing all over the place, but i still really wonder what caused that drop right at the beginning of the hour after it lasted for so long. i don't have any apps that would work with airplane mode enabled and no wifi. the thing is: how much time is one bar on that battery usage chart worth? i always thought it was 15 minutes because every time i highlighted a section, 4 bars showed up for every hour and that would make it even, but i'm not sure about that. from 8-9 AM, the battery was at 100 even at the very last bar of that highlighted section. and right at the first bar of 9-10 AM, it was already lower.