iPhone 12 battery drain overnight

Hey, that’s great that it worked for you!

Unfortunately, my phone already had WiFi calling enabled, and the connectivity conditions didn’t change between losing and not losing charge.

Unfortunately I don’t think this solution is addressing the root problem.

It’s more like a normal reason for batt drain.

You got lucky with that being your only problem though, and that’s awesome!

Thank you for a positive attitude! May I ask you if turning the airplane mode affect the battery drain on your iPhone? For me airplane mode temporarily solved the problem because it turns the cellular reception (not data) off. If turning on airplane mode doesn't affect your battery life, then yes, there is a totally different kind of a problem.

I think we all checked settings > battery and there is nothing using the battery during the night, that is the point (may be Siri and Tim Cook enjoy hearing me sleeping). I also restored my iPhone from an iTunes backup and it helped a little bit. I didn't measure it exactly but it went from 30-25 to 25-15 percent per night.

Simply plugging the phone during the night is NOT a solution. if it drains during the night > it drains during the days, it drains during months and years. So it will kill my iPhone battery even earlier than apple, when it will decide that I need a new iPhone and kill my battery for me (joke).

When I first got the iPhone 12 I set it up as new. A week or so ago I also tried a full DFU-reset and set it up as new again. Neither helped with the idle/standby drain.

The battery app reports no usage at all during the night, just a steady battery decline.

As for the recommendation to charge at night, sure that might help against the nightly drain, but I’m also seeing this steady drain of about 2% per hour during idle/standby during the day as well. And it’s severely affecting the battery life.

Also, charging at night is not optimal for battery health. The Optimized battery charging function might help alleviate this for some, but if you have an unregular schedule it doesn’t work well.

If you All did, none of you said you did. I'm not a mind reader.

I've barely used my phone since getting up this morning at 7:00 AM. It's just sitting on the table next to me. The amount of time my phone has just basically sat there is about equal to a night sleep. My battery percentage remaining? 98%

Yes its true , its really disappointing, i have brand new iPhone 12, my background refresh is off , i dont use 5g, i dont use fast charger , i use orginal apple charger, also no running apps in the background still sucking my battery in idle mode , I usually lose 10 percent on an average overnight for no usage at all. I remember using iPhone 7- iPhone 8 , they never behaved like this when they were brand new , also its been years apple have been fixing battery draining problems with new updates but nothing helps instead gets worse. Never expected with the new phone this year , either they are purposely doing it so next year i might purchase a new battery or they have no fix for this bug.

I have the same issue, I’m using the apple original 20W charger. Night I had charged my phone and it was around 94% and I turned off mobile data, WiFi and Bluetooth and I had turned on low power mode still when I woke up in the morning my battery percentage is 68% this is really bad. In the battery Heath chart it shows nothing still battery is draining.

I’m facing the same exact issue, I have used 5s , 6 , 7 plus and XS this is the first time I’m seeing some issue like this and it’s too bad phone is 2 days old and battery drain during night is crazy. Minimum 25% battery drain in the night. Even if you turn on aeroplane mode also 20% drain is for sure overnight. I hope apple is hearing our problem

My iphone 12pro max 128 is just 10 days old and I am facing really bad battery drain overnight. I had almost 90% left for couple of days before I had gone to sleep and woke up with a remaining battery of around 65%. But white mobile data connected then drain only 10-15% .The battery chart has nothing for these hours. And moreover my mail push is set to manual and I had turned off wifi, bluetooth, location and mobile data. Is there something I can do to stop this?

Omg finally i’m not the only one facing that problem. Here is the same problem, i turn of wifi, Bluetooth, location services, siri, background app refresh and nothing is running in background. Even that I charge my iPhone 12 to 100% battery before i sleep. Then i removed the charger, but when i woke up, it’s like 88% sometimes 90%. What’s going on with some of iPhone 12 ? I’m hoping next update to fix that problem.

Do any of you guys have Genshin Impact installed by any chance?

I have installed it last night and that's the first time my battery drained so much overnight, even though the phone had all networks turned off

I also have the same problem 30% at night and done every thing in my power and also asked online apple care and they just gonna waste your time by formatting, resetting, monitoring and reinstalling software but in the end you have to leave your device to the service center.

It was connected to WiFi of course, just like all my previous iPhone mobiles. I would not accept to change my previous trends to have a normal battery life...meaning turn off something, close some app or play with internet connection...this phone is a brand new model and it should not bring such negative feelings in me

Do you really believe that it is useful for a new generation lithium battery to charge it over the whole night every day? I don’t think so...for this type of battery the best level to keep it is between 20-80%, not good to let to go to 0 or to charge up to 100%

Yes I do think its useful to charge your battery overnight while you sleep. All night. EVERY night.

I traded my iPhone 11 Pro Max which was charged EVERY night ALL night long. In 13 months, the Battery health on the phone was 100%.