iPhone 12 battery draining fast

How does it drain on your 11 pro now? If it’s still 1% per hour than it’s not bad for iOS 14. I’ve got 3% on my 12 pro.

I’m just trying to figure out if this is iOS or iPhone 12 issue. Someone posted SE 2020 screenshots which looked as bad as 12. So perhaps it’s the iOS.

I have an opportunity to return 12 pro and get 11 pro instead. But I don’t want to make a rushed decision and end up with an older device. Especially if this is iOS issue, then Apple can fix this with software update for sure. I like my 12 pro so much that I’ll regret it later. I guess, I could just stick with it until the next update maybe and see what happens then.

1. Not clear, but seems not limited by region
2. The issue resolves in Airplane mode with WiFi enabled (but Bluetooth off)
3. The issue persists in all possible combinations of eSim and physical SIM card

Having said that, it seems that EE customers suffer the least here in UK. At least I had no battery drain when I was on EE eSim (although I had bad cellular signal). So it depends on the combination of many things.

This is my battery usage compared to iPhone usage this night.

Using Low battery Power but wifi is on since it is stronger than the cellular.

it is a iphone12 mini about 1 1/2 month old. Think it happened after an ios update. It was not like this in the beginning.

I received my 12 pro max on Monday and found the battery to be very good. Im in the Uk and on the EE network. I have the feeling these issues must be a cellar provider problem.

Ive tried lots if different things and the battery has never dropped below 35%.

First few nights i was working, i would take it off charge at 5pm. Have the normal social media use. Play music in the car to work. When at work both nights i was using 5g and hot spot to stream the football. Then the usual texts, social media, youtube ect. Into the early hours i would record videos and take pictures then transfer them to my laptop. Drive home again. I finally get into bed and charge it at 9.30am and still be around 35%. So it was in use for 16 and half hours with around 9 hours screen on time.

Yesterday i tried something new and took it off charge at 5.30am had moderate lockdown use throughout the day. This was on 4g and wifi down to not getting 5g in my house. Finally went to bed at around 11pm and still had 57%. I didn’t put it on charge as i normally would to see what would happen. Woke up this morning at 7am and was on 55%.

When i brought the phone i was concerned by everyone’s problems but held hope that the others on EE was doing well. My previous phone the Huawei mate 20 pro wasnt anywhere near as good as this. The mrs Samsung S20 also is also getting charged well before this.

My phone is on 14.3 and not changed using 5g auto and allow more data on 5g ect. So there is hope for everyone. Its a really good phone.

hi

Will see from the screenshot that I charged the phone on friday at 3PM at 78%. I then switched to the physical EE Pay as you go Sim card.

The phone is behaving itself as if nothing is wrong.

You will notice that oin the 15th i was using the O2 Sim and battery was draining.

Hi

i kept the dual sim setup on my phone as well. My esim is with O2 and physical SIM card is pay as you go with EE.

Battery has been behaving itself all day. No drain at all overnight.

One other thing I have come across is that users who are evaluating iOS 14.4 beta are getting good results with their battery.

Judging from the answer given (...because how powerful they are...), it seems that the Apple advisor you contacted does not have the right level of competence. You might consider calling again or asking for the supervisor.

Update: called Apple today.

The service provider wanted to issue a pickup and repair after a discussion of 1 1/2 hours even tough she could not find any abnormalities during the diagnostics.

But it is only pickup and repair, so I would probably be one week without my phone.

I said that this is not acceptable, then cancelled the process.

I will wait until the next iOS Update and see if it improves battery life again.

On 14.2.1 it worked perfectly.

So after multiple calls to support and escalation, they asked me to submit the phone at a service center. The only solution they have at this point is device replacement. They replaced my phone and it has not resolved the issue like it has not for several others. Last night on the replaced iPhone set up as a new phone and not with backup, the phone drained 20% as always. So are all the iPhone 12 Pros defective? Is there anyone out there with an iPhone 12 Pro who is not seeing the 20% drain? Shocking to say the least.

Allowing your new iPhone to "settle down a bit" - that is to say the least - a strange advice that would only make sense if there were some machine-learning functionality linked with battery discharging. Unless I've missed something somehow, there is no such functionality in iPhones. In any case, my example would then work in the opposite direction because my iPhone 12 Pro (bought on Oct. 23) has had plenty of time to "settle down a bit" and it was showing no battery drain issues until a few weeks ago. Only then did it start the tremendous battery drain with me having changed absolutely NOTHING in the phone setup or in my usage pattern.

True this. The moment you just say battery is draining. They come up with a list of comments like battery drains due to usage, due to heat etc.

Please clearly state that while you've turned off literally everything on the iPhone and are set to just accept calls, you are losing 20% battery overnight. Otherwise apple support will kill one week of your time suggesting you weird things that are not even relevant to this case.

Honestly, I spent 30 minutes with Apple support, describing all details of this issue, all details of my usage, pictures of my battery behavior etc... I also try to focus operator´s attention to potential issue with modem, also explaining heavy battery drain is when 2 SIM cards are active etc.... At the end, Apple operator was only verifying, if on the background is some app running. He does not care (or does not want to understand) there is an issue somewhere else.

I did this report even in December. I underline several times this issue with high severity to Apple support. Nothing happened.

I am too, still waiting for the callback from senior advisor. I described my experience with different battery behaviour depending on mobile carrier, they did some diagnostics and sent them to engineering team. It’s been more than a week since then...

But my battery performance has been solid for the last two weeks since I switched to EE. But it probably doesn’t mean much because I’m not travelling due to lockdown, so can’t test it in different locations.

This is why I returned my iPhone 12 mini. I wanted to buy Pro Max, but considering this issue is stll not solved, and there is 0 reactivity from Apple, I will not buy it. It is a shame on Apple, so big company is not able to solve / react on issues.

One of indicator why there is no reactivity from Apple may be it is hardware issue (modem). They don´t want to have recall. Unless there will not be a bigger pressure, nothing will happen. It is a pity nobody from big Youtubers don´t mention this issue in reviews.

Agree with this. I pointed out to the Senior support staff today that my replacement device also had the same issue and I was not seeing the drain with Cellular Data > 3G. She was not ready to admit that this was an issue across several or possibly all these devices. She insisted on running diagnostics again and repeating the same procedure done since the last two weeks. I am already fed up from not enjoying the phone after I purchased it with all these diagnostics.

Asked her a question if she was ready to replace the whole device with a different model (maybe Pro max) if I am able to replicate the issue and prove to her that it was not a regular battery drain but the same bug as before across 2 devices. She said she could not commit to anything or connect me to Engineering to get an answer as to why this issue is happening.

I have given up on my efforts to connect to Apple Support anymore as I am getting a feeling it is useless and Apple is ignoring this on purpose as they would be answerable to a probable hardware issue.