User profile for user: nosleduc
nosleduc Author
User level: 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

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User profile for user: michalfromchyby
michalfromchyby
User level: 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.


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User profile for user: Community User
Community User

Feb 23, 2022 12:51 PM in response to Sbond1963

I know it's an old thread but I'll add my two pennies worth about the standby time issue.


I purchased the 13 mini and was experiencing the same 50% battery drain overnight. Turning off bluetooth and the location services trimmed the loss to around 30%. Still pretty terrible for a new phone with no apps installed on it but then I tried turning off mobile data and the drain virtually disappeared.


As pointed out by various posts in this thread, the problem was poor signal coverage for 4g with my original network provider. I have since switched over to a carrier which produces 4 bars (versus the 1-2 previously) and the problem is completely solved, eg charged to 100% about 21hrs ago and it still has over 73% left with very light use.


So there you go - no need to return the phone :-)

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iPhone 13 Pro battery draining overnight

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