Level 1

48 points

iPhone 13 Pro battery draining overnight

I got an iPhone 13 pro a few days ago.

When I leave my home for work at 8 am, the phone is at 100%. When I come back at 8 pm the phone is at 65% which is fine. I am using it mostly to listen music with spotify, listen some podcasts and some internet browsing.

When I come home, I'm charging it until midnight. At midnight, the phone is at 100% and I unplug it.

Yesterday morning at 7 am, the phone was about 45%. I heard that spotify consumes more resources with iOS15 so I have disabled background refresh for spotify .

Yesterday I redo the same thing but I have closed all applications and restart the phone.

This morning the phone was about 53%.

I need to replug my phone during one hour to get a full battery

The phone is consuming more battery during the night doing nothing.

At home, the phone is in the same room with two homepod minis, an ipad pro and with a 12 pro max. I migrate my data from the 12 pro max to the 13 pro.

At the office, there is no apple products.

I have the last version of ios installed on the phone

[Re-Titled by Moderator]

Posted on Sep 29, 2021 11:36 AM

Top-ranking reply

michalfromchyby

Level 1

8 points

Posted on Feb 11, 2022 7:58 AM

I had very similar symptoms to those described by nosleduc:

Brand new iPhone 13 mini with battery at 100% charge in the evening and a few times a week I found it in the morning with

battery level 55-60%.
Latest iOS installed - yes
All background processing in apps deactivated - yes
I even de-activated wifi, bluetooth and cell connection in the evenings - to see if this eliminates this strange behaviour - but it STILL kept repeating
I also took my phone to apple service - where it was tested/diagnosed - nothing suspicious found.

But still most of the days the battery history chart in iOS would show gradual decrease: from midnight to 6 AM even though there was no app activity whatsoever.

Finally I think I found some corellation / explanation, though is seems pretty weird:

I noticed that the phenomenon occurs ONLY if the phone is left on a wireless charger (plain Qi charger from Spigen) AND if it is not placed exactly in the middle of the charger,

i.e. my hypothesis is that the phone 'notices' the charger and tries to connect, but for some reason cannot really start charging (because it is not placed exactly in the right spot) and there is some process that keeps repeating 'attempt to charge the phone' - but instead of charging this loop is actually draining the battery.

I know it sounds weird and irrelevant, but once I stopped leaving the phone on Qi charger overnight, the strange phenomenon has STOPPED completely. So (at least in my case) this seems to have resolved the problem.

View in context

Similar questions

142 replies

sddemme

Level 1

12 points

Apr 7, 2022 6:40 AM in response to Omgirl07

Try airplane mode. I use an iPhone 13 pro too and it drains 3 to 5 % when I am sleeping. Also it drains 1% every 10 to 14 minutes when I am scrolling Instagram.

nosleduc Author

Level 1

48 points

Oct 2, 2021 12:44 AM in response to barberlives123

I have updated ios 15 to 15.0.1, I have also upgraded my apple watch 3 to watchOS 8.

I have shutdown all my apple devices except the watch

Today at 9 am, the battery was at 40%.

At work, the phone is not connected to wifi but only cellular.

As you can see in the following picture, I have charged to 100% at 1 pm and and get 70% at 7:30 pm after listening spotify all day and I watch a video youtube about 30 mm before coming home.

I charged it until midmight and then unplug it.

As you see, the slope of discharge is more important during night compared to daylight

I'm thinking an issue with my wifi or with cellular antenna around me

Nov 17, 2021 4:52 AM in response to gyana84

I would encourage everyone, as usual, to send feedback directly to Apple about this issue - the more messages they receive about it, the more likely they are to recognise it as a serious problem and do something about it. You can do so here: https://www.apple.com/feedback

JanRov

Level 1

8 points

Nov 27, 2021 6:04 PM in response to nosleduc

10% is still a lot for 6-8hrs idle. I also have issue and as shown below no app was recognized to be causing the drain. I lost ~15% for 6hrs idle overnight in my iPhone13Pro. Looking at my old iphone 8 plus it lost only 22% for 30hrs idle (i have not been using since i got the plnew phone) . I called the apple support andhad screen share and they agree it is quite unusual and recommend to ask for replacement thru my carrier. I will call my carrier and hopefully get this fixed.

Nov 27, 2021 6:15 PM in response to JanRov

I hope you are having fun puzzling over why your battery loses energy overnight, but doing so rather than charging overnight will shorten the useful life of your battery. Your choice, however.

Some energy is going to staying connected to the cellular network. As you only have 3 bars that will be more than if you had 4 bars, and if it is even lower than 3 bars where you keep your phone overnight that will be a much greater drain.

Feb 14, 2022 11:58 PM in response to Sbond1963

Sbond1963 wrote:

That’s interesting. It must be the device that you’re attaching to because I have Bluetooth on all the time and it’s not an issue. If you go to the battery setting and take a look at the graph for the highest usage of the battery what do you see at that time?

Nothing is listed at all. No apps, no system stuff. Same as the screenshot further up thread that @angeant posted. And like the screenshot that @kesslea posted the drain is completely linear.

I have 2 bluetooth devices paired. I've turned them both completely off, and the drain still occurs. The next step is to unpair them both, but that is pretty inconvenient step as one of them is an Apple Watch which you can't use at all if it's not paired with a phone.

Looking in the 10 day battery history the issue began on February 12 which (I think) is the day I updated to the latest iOS patch (10.3.1).

May 24, 2022 8:25 AM in response to differenceclouds

iPhones, unless they are off, are always doing something. But, if you believe there is something wrong with your battery, contact Apple to have them run diagnostics.

Genius Bar Reservation and Apple Support Options - Apple

Nov 13, 2021 7:12 AM in response to wynndengg

If you know you have no signal it’s best to put the phone in Airplane mode to save the battery.

How was the catch?

nosleduc Author

Level 1

48 points

Sep 30, 2021 11:14 AM in response to mario49

I understand that you need to send some basic help documentation about batteries but my problem is a little more complicated. My phone seems to work perfectly in daytime and not during the night

I am a software engineer and I think it is more related to the operating system or the phone itself (which is unlikely). My guess is the operating system. There is something specitic to my home. This morning the phone was at 46%.

I will retry today by shutting down the ipad pro and homepod mini to see they do not communicate during the night.

If it fails I will retry it by shutting down wifi and bluetooth.

nosleduc Author

Level 1

48 points

Sep 30, 2021 12:14 PM in response to Lawrence Finch

Thank you for your answer.

Optimize Battery Charging is already activated. I do not have iCloud backup.

I was using my iPhone 12 Pro max like that without any issue and its battery capacity is at 95% today.

The huge drop with iPhone 13 pro means that the phone is doing something during the night. It consumes more power than using it in daytime.

Plugging the cable will indeed give me a phone at 100% at the morning, but it will hide the issue and the phone will still do some useless processing during the night.

I have disabled App background refresh on all applications, I will see the results tomorrow

nosleduc Author

Level 1

48 points

Oct 3, 2021 1:40 AM in response to Lawrence Finch

I put back my sim card into the 12 pro max and I have done the exact same test. I lost 2 % during the night. I know the max has a bigger battery and we cannot compare batteries directly but the difference is huge. I have also checked the cellular reception I have 2 bars like 13 pro.

For a phone at 1480 $, I expect no issue on battery.

I will check again this night with the 13 pro. If it fails, I will return it.

Nov 7, 2021 5:41 AM in response to Matteng24

As I explained, the absolute best solution is to charge the phone overnight. If the battery is draining overnight there is some process using energy. When you charge overnight the charger supplies that energy, rather than the battery, so the battery rests and thus does not need to be charged as often. And it is charge-discharge cycles that reduce battery life. The alternative is to figure out which app or apps are using the energy overnight.

Nov 13, 2021 12:54 AM in response to Lawrence Finch

Hi Lawrence, thanks for pointing out that weak cellular signals would cause massive battery drainage! Your answer seems to have resolved the battery drainage issue i had this morning.

I went out to open sea fishing at 5am, came back at 1pm and my iPhone 13 Pro max only had 60% remaining. 😦 This got me wonder and worried as the total screen on time was only 90mins during these few hours out in the sea.

In the following screenshots, it shows that even though I only had 4 min screen-on time, 30% of the battery usage was used for “no mobile coverage”. The second screen shot further proves that 95% of the battery was used on “No mobile coverage” while I was further out in the sea.

Screenshot 1)

screenshot 2)

ill keep monitor the battery drainage issue tonight and hopefully weak cellular signal is the main problem for me.

To nosleduc: hope you can find out the root cause for your battery drainage soon 🙏🏼 I totally understand how you feel when your phone gets drained out without a reason.

Dec 8, 2021 4:00 AM in response to JanRov

Hi JanRov - this is definitely not what is causing battery drain for me.....I always have cellular data switched off when I can connect to wifi. Seeing as I work mainly from home, this is most of the time, as I am only on wifi at home. At night (bed time), I switch my phone off completely, whether it is charging or not. There is without doubt enough evidence to suggest that there is a real problem with battery drain, I think with the software around 15.1 or maybe even later version(s). I dont think it is necessarily the iPhone 13, as many people have reported the same battery issues with older iPhones, but with the latest IOS software versions installed.

12_09

Level 1

8 points

Jan 31, 2022 6:15 AM in response to nosleduc

Hey i also face the same problem. The battery keeps draining the whole night though it is on the flight mode and when i start using the phone yesterday i just used it for 1.4 hrs and lost 40% battery. Isnt this insane. Facing too many problems with the 13 pro. Have purchased with so many hopes and i am tensed to invest so much amount on it again. I will return the phone

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

iPhone 13 Pro battery draining overnight