iPhone 13 Pro battery draining overnight

Mario49,

Why the crap do you constantly “answer” questions that have a lot of detail with links to subject related “Q&A” posts by apple that clearly won’t help at all based off of the details already provided?

My guess is you are either:

A: A somewhat advanced spambot that looks for keywords then posts a generic comment linking any unhelpful Q&A pages that have the same keywords.

B: Someone who cares more about how many questions they “answered” than actually helping the person asking the question.

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.

The best solution is charge the battery overnight? Really? Is the same like if you say the the best solution for car with hole in the fuel tank is to refill more gasoline..

I think the best solution is to find the reason why the battery drains overnight so fast.

I understand 5-7% during 7-8 hours standby during the night, but 30-40%??

Do you guys try to erase all data and backup your phones from iCloud? Not Reset All Settings but Erase All Content and Settings?

Hello nosleduc,

Thanks for reaching out to Apple Support Communities. We've reviewed your question and it looks like you are experiencing rapid battery drain with your iPhone. It's understandable that you'd want this resolved, so allow us to assist with that. Please start by taking a look at the following articles, which can help with this issue:

• Why Lithium-ion?
• iPhone Battery and Performance
• Maximizing Battery Life and Lifespan

If you have follow-up questions, please let us know. We're here for you. Have a fantastic day!

Charge it overnight. The absolute best way to slow the decline of battery capacity long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night. The battery will fast charge to 80%, then pause. During the nighttime pause the phone will use mains power instead of battery power, allowing the battery to “rest”, and thus reducing the need to charge the battery quite as often. The phone will resume charging to reach 100% when you are ready to use your phone; it will “learn” your usage pattern. If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates.

differenceclouds wrote:

https://discussions.apple.com/content/attachment/78afd27d-f957-4023-9d08-37a82c63cc3c

Just want to stress again, there is something very wrong here! This is after turning off 5G and background app refresh.

What's wrong? Your battery lasted almost 15 hours.

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.

I have an iPhone 13 which I charge overnight on a smart charger.

Last night I put it on charge at 21:00 with 95% charge. I heard the recharge tone to indicate charging had started.

At 07:00 today the charge is just 1%

Battery usage shows a steady drain during those hours.

I am running iOS15.3.1

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

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

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

I posted in the MacRumors Forum and am posting again here. What’s really strange is that if the OS update is the issue then it doesn’t explain why my battery life has been great a month in 15.5. The sudden battery drain occurred just recently (3weeks ago) and there were no updates from that time. I’m certain of it because I set it to NOT automatically update.

I’ve been having battery drain issue for weeks so far. I literally tried everything I could and even made a troubleshooting list:

• location services off
• Share location off
• Reseted Apple Watch
• Update Apple Watch OS
• Logged out Apple account
• Logged out iCloud
• Restarted phone
• Removed AirTags and AirTag batteries
• Deleted some apps
• iCloud log off
• Toggle off wifi
• Reset all settings
• Factory reset phone
• Find my off
• Find my device off
• Airplane mode turned on
• Bluetooth off
• Powered off my phone

None of the above solutions worked. I couldn’t believe that even when my phone is powered off it’s still drains. My battery drains 30-40% even when there’s absolutely nothing showing in the battery usage tab throughout the night. At this point my phone is no longer a smart phone. I’m very disappointed as this is an iPhone 13 which I got 6 months ago. The only option I have now is to bring it to Apple Store unless someone has another idea that I can add on the list. Please let me know lol. This is honestly such a time waster trying to figure this out.

Update:

Went to Apple store and rep said I need to use the computer to factory reset the iPhone since the computer freshly installs the OS onto the phone. She said not to restore from backup as well. Done all that but battery still drains.