iPhone 12 battery draining fast

Hello all,

it seems like this is a general problem from apple.

I'm a iphone 12 mini user and i have the same issue here.

Last night i've charged the phone to 94% and when i woke up after 6 hours it was already 80% . For sure this is not normal, even with updated ios 14.3 it's not working.

My last phone was Samsung galaxy s10 and there is not such a problem like that.

I hope they will fix it.

Really like this iphone mini.

Try to disable WiFi while at home (no flight mode, just WLAN / WiFI connection). Doing this stops the drain at least for me, though this is of course not an acceptable solution, but I still have not figured out why the iPhone battery begins draining when I'm on my personal network.

Of course it is hard to believe, but the reason why Apple act like this is obvious.

They cannot admit that their brand new iPhones 12 are suffering such issue. This would be a "suicid" for them to do this a few weeks before Christmas as so much customers are still in the window allowing to return their devices and ask for refunds. And of course, this would be tell by medias and this will for sure reduce their sales in the strategic period.

And people who are suffering the issue but are not aware of, like several of my friends who have an iPhone but were used to charge it by night or to use plane mode, would make them aware of that and would be added to the not satisfied customers list.

So it is better to make people think that their are fool and don't know how to save their battery.

But if I had wanted to have to switch off WiFi, data and apps to save my battery, I would have bought a 100€ Android phone... not a 1400€ iPhone!

Next step is to recommend to switch off the phone to don't have battery drain?

" Next step is to recommend to switch off the phone to don't have battery drain? "

I understand the sarcasm in your frase :) , but i have thought about testing this just to see the result...now i am curious if this expensive machine can blow my mind and loose battery even when it is turned off...Of course Apple would say that's "normal"

Same as you, my friend.

Had an Iphone 11 Pro before and it's crazy how lighter and comfortable a Mini is compared to it. Also, the fact that I'm not a heavy user pushed me towards it despite its small(er) battery.

i understand you completely. The phone is perfect like size and speed, but this issue with the battery is really strange.

I’m not a heavy user too, but its a bit annoying to leave the phone for an hour and to end up with 10% less battery 🤷🏻‍♂️

there is no logic really.

I’m also using Airtel sim. Some people who said that the issue got resolved, are saying, they got carrier update along with iOS 14.3 update.

So I guess we need an update from Airtel carrier as well, I’m not sure !

Ok so as per testing my 12 Pro Max and my brother's 12 Pro after updating to iOS 14.3 with "carrier update", both phones' batteries are performing normally, finally. So I think I can safely say it's carrier related. They have to update to configure their network system according to the new modem.

On standby, the battery hardly drains. When on use, battery consumption is no longer drastic.

Hi hafz88,

Did you get your phone from an Apple Licensed seller? If you did and you are within the manufacturers warranty, how can they refuse to allow you to return that phone? Some others have also said the same thing. I’m don’t understand how they can do that, legally.

Hi kvs2407,

The carrier updates are a part of iOS 14.3, you don’t need anything from your carrier. Apple incorporated the carrier updates into iOS 14.3. Just update the iOS and you’ll have all the inclusions.

In my case the carrier update was not included and has to be done separately from settings/general/informations and there it is proposed.

And even with the carrier update, issue seems not to be solve but only slightly reduced ...

I will make a new test during the coming night.

That would be pushed by the carriers only if any changes are necessary. I haven’t seen one from Airtel so far on iPhone 12 from the day of its release.

And it’s more of a waiting game, as there’s no way to check if there’s an update OR are we up-to-date.

Just 🤞🏼

nothing changed for me with 14.3 :( the only thing that helps is using 3G, the phone lasts for 2 days then (but it's not perfect solution, I need 4G in 2020 :)). when I switch to LTE the phone starts losing 1% per about 30 min in idle, that's insane. and with 3G enabled I can still see some battery drain, it is especially visible during the night, 5-6% when being idle for 8 hours with everything disabled. My husband has a watch connected via bluetooth, Wi-Fi on and he loses the same 5% during the night (and he uses 4G, not 3G as I do)! I have iPhone 12 mini, he has 12 pro, we both have the same carrier - Vodafone Ukraine. I can't see any carrier update under Setting > General > About

Even for your friend, loosing 5% during night is a moderate drain but is still not normal...

With a similar configuration, except I had dual SIM, on a 11 Pro Max I remained at 100% or exceptionally at 99% during a night in idle.

With my 12 Pro Max I loose 20% ...

Selzere wrote:

Even for your friend, loosing 5% during night is a moderate drain but is still not normal...

It certainly can be. It all depends on the particular situation. Depending on things like signal strength and background tasks, a fair bit of battery could be used.

With a similar configuration, except I had dual SIM, on a 11 Pro Max I remained at 100% or exceptionally at 99% during a night in idle.

With my 12 Pro Max I loose 20% ...

They are different pieces of hardware. The experiences will be different.