iPhone 12 battery drain overnight

Ok guys, so here is the answer to everybody who has battery problems during the night with iPhone 12 models: charge it all night long so you will not face this problem again :)

I think this conversation went far from the original question that is a very serious issue for the manufacturer and many users are waiting for the solution.

The question is why new models are dramatically loosing from battery life during the night when they are not used at all?

Guess the points coming up here are a solution to charge the phone overnight so that one doesnt see the discharge free fall thats happening in the idle state; in my opinion, thats not a solution. The root cause still remains and thats for Apple to address. I'm pretty much satisfied with the backup that I'm getting except for the drain over night; if this is addressed, the battery backup would be above satisfactory level.

Plus if apple support is pathetic, all they do is hit and trial to see if something works. Its for apple to come up as a solution in their upcoming iOS 14.3 update so that this is taken care. Hope Apple is listening !!!

Apple isn't listening here on this forum if that's what you're hoping for.

None of my phones drain. None of the 12's of co-workers drain. Waiting for an update which likely won't do anything for this is not the best solution. This is NOT a universal issue and this thread of 4 pages hardly suggests out of the millions of phones sold and this being the most used iPhone forum in the world suggest this isn't an issue for many people, to be honest.

You should do what I suggested above and do a backup restore. Otherwise, it does make infinite sense to charge your phone at night while you sleep. You wake to a phone fully charged for the day, which is also backed up from the day before.

Sunday, my phone was powered on and not really used much all day from 7:00 AM when I got up, till after 11 PM when I went to bed. The battery percentage remaining after that many hours connected to Wifi, checking email some, but not much else was 92%.

Try the backup restore procedure on your phone.

Universal means it affects EVERYONE. I'm telling you it's NOT universal. If it were universal, is should affect the two 12 phones in my home. It's not. It should affect the iPhone 12's owned by people in my office. It's not. It should affect people I know who own iPhone 12. It's not. If you go into a hospital and see nothing but sick people, do you assume everyone on the planet is sick? Of course not. Coming here and seeing even a lengthy thread is statistically insignificant in comparison to the number of devices sold.

You can keep you assumption which is false. You can wait for an update to come, which likely won't come. Or you can do something for yourself and see if the backup/restore procedure stops the drain, which is happening to your phone, but NOT ALL phones.

I personally know as minimum 5 people facing the same problem but they just don’t care) people who care sometimes don’t know where to find for a solution, they just know nothing about forums like that. And this is not the only forum about that problem. In Germany, China, Russia, users are reporting that problem widely in their local forums. That happens only when you are connected to a special carrier line Vodafone in Europe, MEGAFON in Russia. But iPhone feels good with another carrier. So that might a kind of incompatibility between Base stations and iPhone’s new modem.

the only thing that solves that problem is to enable the AIRPLANE MODE or switch your cellular data to 3G instead of LTE.

this problem is massive, but conditions of the phones usage are different, carriers are different. If somebody will install a sim of problematic Servise Provider, right from that moment the problem is going to exist.

Why people need to isolate that problem on their phones if that is not the only their phones problem? That exist in “some condition” with every phone, because people have had 4-5 replacements and the problem still persist.

but it doesn’t persist if you change a phone to an older with intel modem(like 11) or change a Service provider. With absolutely same conditions.

so to say, a have a friend with iPhone 12 and facing no issue

like me, but he has another SP. I installed his sim into my phone, then I installed my sim into his phone and the result is: my phone stops draining, his phone began.

this is the issue, and user doesn’t have to change something like an SP, because too many of users are contracted with them, Apple has to solve that problem, because this is not the fault of the users.

OK.....You can believe what you want. I'm suggesting you do some troubleshooting. You can sit and wait for a mythical solution from Apple, which MAY or MAY NOT ever come. Your choice.

I'm not going to continue this with you at this time.

Hey! If you don’t have this issue at all so why you are taking part in this topic forum? Why are you trying to push your “solution” to others if you don’t have this issue therefore you don’t have an experience in it?

I came here to offer the suggestion of backup/restore a tried and often true remedy for issues like this through many generations of iPhone.

Unlike you, I've been on this forum for more than a decade and I participate in many threads trying to help people. You clearly don't like that I offered a possible solution and that's fine. But I at least offered you something.

I don't believe because I don't have an issue should prevent me from trying to help people. If my suggestion isn't something you or anyone else want to try and you'd rather hope some magical solution is in a future update, that's fine. You can wait. But I'm suggestion that's not the best solution for a solution for an issue which is NOT affecting all iPhone 12 owners.

I am curious how you've selected the cellular band your phone goes to? If you go to Settings > Cellular > Cellular Data Options > Voice & Data - What have you selected? Me personally, I use 5G Auto, but I also live in a city in the US and my cellular provider is AT&T and they have recently turned the 5G service on here. If you live in a city where 5G service is minimal to non-existent, you may want to change the setting on your phone to LTE to stop your phone from constantly looking for a 5G connection which may not exist for you.

BennyGy wrote:

Hey! If you don’t have this issue at all so why you are taking part in this topic forum? Why are you trying to push your “solution” to others if you don’t have this issue therefore you don’t have an experience in it?

This is a technical support forum. If the only people who were allowed to post were the ones with the problem, that would be a lot like saying that the only doctor who could treat your illness was the one who currently had the identical illness. While some of us may not have the exact experience you are having, we have done a lot of trouble shooting. We have read a lot of threads, watched solutions unfold.

this is the post that should be written by someone who has no experience in the actual issue, thanks. But you can tell your suggestion once then everybody will make their own decision if follow it or not, but it’s useless to repeat or push something. I mean it also for your opinion about waiting for apple to solve it by an update, cause it happened that an update fixed a problem. Furthermore in my opinion an issue is general if more than 100 users face with it (so as in this topic) because general issue does not mean that all users suffer from it!

I don’t agree. If someone who read about many troubleshootings or has some experience in past issues should not allow him to just comment on all new issues without any experience/knowledge about the issue itself. Especially if we are here in a technical support forum as you wrote where we are looking for an answer or solution and not an opinion on why we are waiting for apple to solve it....because till now this looks the only solution.

BennyGy wrote:

I don’t agree. If someone who read about many troubleshootings or has some experience in past issues should not allow him to just comment on all new issues without any experience/knowledge about the issue itself. Especially if we are here in a technical support forum as you wrote where we are looking for an answer or solution and not an opinion on why we are waiting for apple to solve it....because till now this looks the only solution.

You are allowed to have your opinion. You are not, however, allowed to dictate who does or does not post.

Suggestions things to do have been given. Some of the people posting in this thread seem to prefer insisting those suggestions are not valid troubleshooting steps and that the only thing to do is to wait for an update. That is foolish. It is more likely that the problem can be solved by standard troubleshooting and that an update designed to solve the problem will not be forthcoming. You are, however, free to wait.

Benny, if you are unwilling to try anything suggested, that's your right. It's not worth my time to try to help someone unwilling to help themselves, so I will not try to help you further. I hope you enjoy waiting for an update which may never come. That's also your right.

I have noticed, on more than one occasion, that my screen was on in the middle of the night. I have waited for multiple minutes for it to go back off... only to wake up later and it is on again. What I have noticed is that the screen stays on after it receives a notification and I have to manually push the power button to get it to lock and shut-off. I have tried disabling 'Raise to Wake' and restarted my iPhone 12. This has happened more than 10 times in the past few weeks and I have noticed significant power drain in the past few weeks. I am not sure if this related to the iOS 14.2/14.2.1 or if this existed from the very beginning.