iPhone 12 battery draining fast

Oh I didn’t realize that updating to iOS 14.3 automatically turned 5G auto mode on and there’s no 5G here. That explains the battery drain. Now I opted to LTE. Fingers crossed, this will make everything ok.

So

Wake up with 98%...one hour later i arrived at work:

ONE hour

20 minutes screen on time

Lost 15% battery

This is inadmissible, Apple being saying this is NORMAL behavior...i don´t see this behavior, not even close on my iPhone 11.

Put this on your minds, this is not a carrier problem and you should not be messing with settings just to get it working “better”

This is a phone problem...hardware or software.

Keep going to Apple stores and filling the Apple feedback form.

Put this on your minds, this is not a carrier problem and you should not be messing with settings just to get it working “better”

helder33 wrote:

Put this on your minds, this is not a carrier problem and you should not be messing with settings just to get it working “better”

This is a phone problem...hardware or software.

This is it as I said previously, people are trying to reduce their use and adapt their settings to improve the battery endurance and to get something more or less close to what they had with their previous iPhone.

And they even get happy when its improves, even if being still worst that an iPhone which was at least 1 year old...

But it is a shame to have to do so with a brand new phone when you haven't change your use nor your settings!

Don't say "it is better than yesterday", even if it is, when it is much worst than with an iPhone 11, or older, guys! Please...

As if you car was sold for 45 MPG, you got only 15 initially and finally 20 after service. Ok it is better but it is still much lower than what could and should be expected ;)

Selzere wrote:

As if you car was sold for 45 MPG, you got only 15 initially and finally 20 after service. Ok it is better but it is still much lower than what could and should be expected ;)

That's actually a horrible example, as MPG ratings for cars are under very carefully controlled conditions that have nothing to do with actual driving.

You shouldn't have to change your settings, but the carriers definitely do.

If everybody is an iPhone user...you just have to do a simple thing, compare it to previous models that you owned...

Did you have to mess with settings to have your device working properly? NO

Did you, every morning or during the day, have to check your battery? NO

Is this issue normal ? NO

It’s not ok to say that as been an improvement and it is a little better, and it is good for you.

This is not ok for me and should not be to everyone here...the most important thing is to Apple acknowledge this problem, and that only happen with “noise” and not saying “it’s better”.

KEEP WRITING ON APPLE SUPPORT PAGE...OR GOING TO APPLE STORES

Do you think if I switch networks it will help? It will also mean I will be spending more on my phone bill every month. I notice those using EE don’t have any issues but those on O2 have the battery drain.

helder33 wrote:

This is not ok for me and should not be to everyone here...the most important thing is to Apple acknowledge this problem, and that only happen with “noise” and not saying “it’s better”.

KEEP WRITING ON APPLE SUPPORT PAGE...OR GOING TO APPLE STORES

I have already submitted 3 complains on the feedback form, but never get any answer ...

I have contact Apple Support once, and as everyone I was told than my phone and its battery is doing just fine and that I have to switch off background app activity, kill them before night and maybe deactivate my watch background updates... Great! Thank you Apple ...

I didn't get a clear answer when I asked why I hadn't made it on any of previous iPhone ever and didn't face such issue ...

No. If I disable the mobile connection and only use Wi-Fi including Wi-Fi calling the drain is gone completely.

I also didn't seem to receive a carrier update after updating to iOS 14.3. At least there was no kind of notification in that regard.

William Kucharski wrote:

That's actually a horrible example, as MPG ratings for cars are under very carefully controlled conditions that have nothing to do with actual driving.

Indeed, your are right haha! But I am sure you get the idea ;)

Has anyone seen the battery get worse after the update? I lose 1% at hour on standby and 4-6% at night in 7-8 hours ... I don't know if the update could be just a useless risk for me! Any suggestions?

Ok. Now let me explain my condition in detail and let me tell you why this problem is not what everyone thinks.

I bought an iPhone 12 pro in india.

Paid 120K ($1650) worth of indian currency for the device.

I only use one physical sim (no e sim used) by AirTel India.

I don’t use my mobile data. Only my household wifi.

Before 14.2, i used to charge at 36 hours intervals on normal usage.

Updated to 14.2 and saw an overnight drain of 20%

Read in this very forum somewhere factory reset my device, nothing happened.

Calibrated my battery by discharging to 0 then charging for 6 hours straight, nothing happened.

Turned off wifi, bluetooth and notification. Turned on dark mode and low power mode, flight mode etc etc. Still drained 15% overnight.

Turned off the background refresh of all apps, still nothing.

Updated to 14.3, carrier update arrived and still 9% drain overnight yesterday.

The saddest and most annoying part is that when i contacted the apple support, they behaving as if they are hearing this issue for the first time and suggesting turning off background refresh and all sort of things.

Filled the feedback on apple support and waiting for some help to arrive.

Trust me I’ve tried everything and nothing has worked yet. Don’t go through all the trouble of resetting and experimenting with different settings. Cause I’ve been through all that. And this is my first apple device ever.

Same problem as everyone else. I have an iPhone 12 Pro Max and am seeing battery drain of between 15% - 25% when idle overnight.

Have tried erasing device and restoring from backup, resetting device settings and have updated to the latest 14.3 iOS version and nothing has worked.

Apple need to sort this out!

Problem seems to have been resolved for me with iOS 14.3 on my iPhone 12 Pro Max.

Previous Carrier Settings version - 44.0

New Carrier Settings version - 45.0

Drain is more or less non existent.

FYI - I am with Sky Mobile.

Hmm well I think so. I got all new SIM cards for my iPhone 12 mini. First an esim for my telekom plan and a new physical sim because I found a nice Black Friday deal on handyvertrag de (uses O2 infrastructure) (Was on temporary dual sim until my telekom contract got cancelled so I could move my number to the physical sim). Even with dual sim with two different German carriers, I had no battery drain on 14.3

Hi

I’m also on sky mobile but can’t find the carrier settings on my IPhone 12 Pro

I have looked at Settings-General-About but can’t find the carrier setting.

Any pointers would be welcome please.

I too have updated to IOS 14.3 and seen a great improvement in battery drain since the update

but would like to see the New Carrier settings.