iPhone 15 Pro Max battery draining without use

Which AI app did you get that from?

Item 8 is WRONG, WRONG, WRONG! AirDrop uses ZERO energy except during a transfer. Wi-Fi uses no energy except when connected, and NONE when the phone is asleep. Bluetooth uses NO ENERGY except when connected to a device. And if you turn all of those off Find My will no longer work. And neither will automatic nightly backup.

I am wondering if the iphone heats up like this in the beginning after backups are transpiring then after this everything cools down and the phone runs normally without battery drain and overheating?

I know I had these issues at first then after a week it all stopped and I haven't had the issues again.

I bought the iphone 15 pro about two months ago and this went on only for the first week then no more.

Has this been the case with anyone else?

Thanks.

It sounds like you are in an area with low cell coverage and are using cellular data.

The worse the signal reception in your area, the more energy is required to maintain contact with your local cell tower, which may result in the battery usage you see.

As always, the way to avoid such issues is to always connect your phone to a charger overnight.

I’m experiencing the same thing! Went from iPhone 13 Pro Max to an iPhone 15 pro max & my battery life is either the same or worse! I think it’s a processor issue. Because I can be on this site or the regular Apple website & it might go down 1-2% in 20-30 minutes while in use. But right when I close the safari app out & turn the screen off & yet in approximately 30-120 seconds the battery will immediately drain another 1-2% after I tap the screen for the screen to come on. So basically it uses more battery when not in use than it does while being used. The always on screen, location services, Siri, automatic updates & downloads, Bluetooth, iCloud cellular synching, hotspots, airdrop, background refresh, keyboard haptics, rise to wake screen, etc. are all off.

Even if everything is off, your phone still expends a fair amount of energy to stay in contact with your local cell tower, especially on 5G.

If your signal is low, the battery use will be even higher.

Was charges 100 % before I fall asleep . Battery drain to 76 % once I wake up . Shall I active airplane mode while sleeping ?

I fully charges my phone and go to bed . Once wake up left 76 % . Why did it happen.

if charge while I sleep . Won’t be over charge?

Please read the rest of this thread, then come back with any questions that the thread does not answer.

Wow what a change! So you didn’t restore from backup? Just signed in to iCloud?

Sounds good, keep us updated, I’ll have to try that if it works. Right now I’m losing 15-20% battery overnight in airplane mode

my phone olso have same problem battery draining to quick n olso I tern off all the back ground apps

I charge mine over night and what happens is it gets to 80% then goes in to optimal mode and tells me the phone will finish charge at 3am. As my alarm goes off at 05.20 it’s not on to long 😊

I have also same iphone 15pro max battery drain problem

First, update to iOS 17.3.

Second, leave your phone connected to a charger overnight.

Look at your Battery statistics and find out what's using power.