My iphone 12 is just 2 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%. 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?
[Re-Titled by Moderator]
iPhone 12, iOS 14
After a couple days of experimenting.
Let me give you scenarios/examples with no regard to any other settings other than those mentioned being turned on or off.
iPhone 12 Pro running iOS 14.3
SIM card installed, WiFi on, Cellular On, Bluetooth in Standby (Turned off in CC to disable new connections, but still enabled)
Battery drops between 15 and 30% over an eight hour time frame while not being in use. (This was the case for a couple days, until I realized something was clearly wrong)
SIM card installed, WiFi off, Cellular off, Bluetooth standby same as before
Battery drops around 10% over the same time frame (Better, but still not satisfying)
Now get this!
SIM card taken out, Wifi on, Cellular off, Bluetooth same as before, I also turned Airplane Mode on for the sake of it
Draining between 1 and 3% , over the span of 8 hours.
I know, it seems absolutely silly to use an iPhone without a SIM card, but as long as this bug is not fixed taking out the Sim card might be your best option to prevent your battery from draining over night. Or you just simply keep it on a charger. Keeping the SIM and at least turning off WiFi and cellular or putting the device into airplane mode should make the battery drain a little less too.
Some other things you might want to switch off, if only to test for a couple days to see if battery life improves and slows the drain. Keep in mind, you can disable everything temporarily and don't have to worry about anything breaking. If something needs a certain thing enabled, iOS will most likely give you a prompt anyways. You can go back and enable everything again, but until a version of iOS 14.3.x or 14.4 is released that addresses the those kind of issues, it's the best and to be frank, the only thing you can do.
System customization also updates in the background constantly ( if you turn it off, Dark Mode/ Appearance will still be able to work in sunset/sunrise mode, night mode however will work only when you put it on a custom schedule, and optimized battery charging will not work (even the option itself in the battery menu is enabled) if you have Significant Location and/or System Customization disabled).
I don't mention any of those things like turning off Background App refresh, dimming your display etc as those can be found in literary every 'iPhone battery savings' video or article.
It is clear that the issue can be pinpointed to the cellular modem, which can only be put into completely pause if there is no SIM card in the device. Airplane mode alone does not seem to fix the issue fully nor does turning off Cellular data help much if anything.
While charging while you sleep makes sense, your analogy is actually pretty poor. Even if the phone is charging it still functions and you can still use said phone. Unlike driving a car without lights at night, which would be illegal, dangerous and foolish. Is there a reason you object to charging your phone while you're asleep? Does it in any way interfere with you sleeping? Can it harm the phone? Is the phone unable to operate while being charged?
Of course not to all three questions.
But you are missing the bigger picture. If your phone is draining over night, you need to figure out what is the root cause of the drain. You're just complaining about your phone's battery draining and there have been multiple suggestions provided throughout this thread to try to isolate the cause.
Now I have updated my phone to iOS 14.3 thinking the issue would be fixed it’s still the same. Turned off mobile data, WiFi and Bluetooth also turned on low power mode battery has drained 22% by the morning and the battery chart doesn’t show anything iPhone 12 is so bad haven’t experienced this kind of issue with any other iPhones before. Why is apple not listening to this issue
oh my. 403 users having same issues.
i was observing mine and having same. My worst event is when i woke up my phone was completely shutdown. From 30% to 0
i dont have 5g enabled sim yet. There is no app running on the background as i checked.
the only suspect i see here is i got this issue after i paired my apple watch s6. I am still not sure though.
i also read the replies. And darn, why is charging your phone a solution to some? Lol. I sleep most of the time with 50%+ on my batterry and you want me to charge it for 6-8 hrs? I dont think thats a good idea. I suggest you sleep not charging and press the “me too” when you wake up cause im sure you will be having same issue
and yes i believe this is a BUG on OS that needs fixing. FAST
I have the same issue with my iPhone 12. Recently switched to iPhone, using the 18 watt charger of the iPad Pro 2020 to charge it, no open apps, no wifi, no 5G, no anything. My previous phone, Samsung s10 was at 98% and now it’s at 93% after like 10 hours of no use. Meanwhile my iPhone 12 was 88% at 00:40 then when I woke up at 4:44 to get something to drink it was at 81% and now at almost 9 o’clock it was 74%.
I slept all the time and didn’t use the phone. I love the seamless interaction between the iPad and the iPhone, but the battery is very disappointing. I hope it’s a software issue that’ll get fixed.
I mostly only get two bars of reception in my apartment but I don’t see why that should cause it to drain that much and I don’t want to buy a phone to keep it on airplane mode. Lol.
Can’t wait. Also. I restarted my phone now and I’m on WiFi. The percentage didn’t drop at all for like more than an hour. So maybe restarting helped or it just needs to stay connected to WiFi. At least it seems to be a software issue.
nikolafromsliven wrote:
Are you sure, and actually is there anyone who already tried the beta version?
I would imagine lots of people have tried the beta version. However, all of them signed a non-disclosure agreement when they signed up for the beta program (yes, even for the public beta) which means they're not allowed to talk about it. The Hosts will remove discussion of beta software if they're posted here in the forums.
I have the same problem battery is draining over night but i dont have that problem during day i charge the phone at 6:00 in the morning and by 6:00 in the afternoon when i get back from work i stil have like 70% battery left and 2:30 -3 houres off screen on
Same problem here, iPhone 11 Pro, 91% battery health. It discharges almost 20% overnight. I use an Apple Watch S4 to track sleeping. The drain happens only if I leave Wifi, cellular data and bluetooth on. If I set airplane mode and leave bluetooth ON the drain almost dissapears. This never happened before the iOS 14 update.
Marshmall0 wrote:
By typing the truth your comment gets deleted, nice. Good job.
No, by disparaging users, you violated the terms of use of the forum. And that is how your post gets deleted by the Forum Hosts. Anger directed at another user will never be permitted in this forum. You certainly don't have to agree with other users. But you can't accuse them of things or call them names and expect your post to remain.
So sorry to hear, that is way worse than what I’m experiencing.
Someone needs to be answerable for this.
well, you don't have this problem then
Maybe this is bluetuth issue, have you tried to turn off Explosure Notification?
I also notified that battery drains on connectivity witk car bluetuth and smart watch
Why are you not just charging the device when you're asleep?
Hence why people need to isolate the issue on their phone and why waiting for an update which is unlikely coming is not a good solution.
Did you get a chance to try disconnecting from the wifi for a night? Did you see any change in the battery behaviour?
iPhone 12 battery drain overnight
