iPhone 12 battery draining fast

Hi, I bought the iPhone 12 pro about a week ago and faced about 20% battery drain in the nights. I an also facing a good amount of battery drainage with a minimal usage of browsing and and a bit of social media. Say about 5-6% battery drain in about 20-25 minutes. Are even you facing a battery drain with usage?

apparently, some users in the US are also experiencing inconsistent battery performance which is what I’m experiencing right now. I talked to my cousin from NYC and he told me there were times when he would lose 20% battery after a 10-minute call but there were times the battery wouldn’t lose any juice after browsing the web or social media and this is same case with his wife’s. In my case, I’m no longer losing massive battery overnight as it’s now ranging between 3-10% after 12 hours but it has been very inconsistent. There were times I’d only lose 1% after 4 hours during daytime but there were times I’d lose 5% in less than an hour.

In my tests I figured out that the problem clearly has to do with bad reception. I usually have only 1 to 2 bars in my apartment but tonight I slept at a place with good deception (5 bars). The result: My iPhone 12 lost 5% during the night (43% to 38%). In my apartment it‘s usually 25-30%. My old Android Phone always had good reception in my apartment. So the only workaround is using airplane mode, which sadly isn‘t possible during the day.

Having the exact same issues here.

upgraded from an XR which I was reluctant to get rid of as it was still doing so well after 2 years.

moved to the 12 and the battery is terrible.

I use it the exact same way as I used my old XR and the battery lasts no where near as long.

I took it to the Apple store where they told me there was no known issue and the battery was meant to do what it did. Couldn’t get a refund either!!!

I haven’t had a phone that hasn’t lasted a full day in about ten years!

very very disappointed Apple,

IPhone battery drain during standby is huge. I have infact removed all my widgets from my screen and stopped most of the notifications still during night time during standby i have battery drain in range of 20 to 30%. I am clueless now. how to go about it. Please let me know if its a bug and can be fixed with software update . and if apple is working on this issue.

Hi , i was facing battery draining issue with 12 pro like everyone here . I returned and got pro pro max but the battery is still draining in a similar way of 12 pro.

Apple should call back all the phones.

i returned it once and still i am eligible for the free return policy till 20th January . I am gonna return pro max as well and would buy 11 pro again.

The sad part is that when you speak to the customers help or technical support team , they would pretend like they are hearing the problem for the first time ...... you have to tell them that battery issue thread on apple forum has 80 pages till now .....very disappointing

Our only hope is 14.3 that's coming out today.

If it doesn't solve it, have to consider seriously sending it back and try to find an alternative on the Android side that is similar in size to the iPhone 12 mini.

When I looked yesterday there were over 63k posts on this drain topic. Apple must know about it, just too scared to own it.

My findings so far....trying out different solutions posted in the thread:

Replacement 1 iPhone 12 Pro Max

Night  1 Powered on straight out of the box. No Sim or setup. 

10-12-20 2200 battery 98% left on.

11-12-20 09:05 battery 93% turned off.

Night  2 Install O2 PAYG Sim. Connected to 4G

11-12-20 22:00 battery 92% left on.

12-12-20 09:06 battery 62% turned off.

Night 3 Phone charged for awhile on MagSafe charger. Setup performed. O2 Sim left connected to 4G Manually set network. (5G sim not available for O2 PAYG yet). iPhone set up with iOS 14.2   Connected to home wifi, mobile data off.

12-12-20 battery 22:00 88% left on

13-12-20 battery 09:03 60% turned off.

Worse then my first phone, although that was setup with 14.2.1,  so won’t jump to conclusions yet. Will test with selecting 3G next. Not restoring backup just yet.

Night 4 charged up and manually select 3G manual select O2, mobile data turned off. Connected to home wifi.

13-12-20 22:10 89% left on

14-12-20 09:05 85% turned off

Seems like setting to 3G makes a real difference!

Well, that's where my screenshot comes from and, as you can see, no 3G option there. It is the same for my physical SIM settings.

Could be a provider side feature that it shows on the phone if present.

iPhone 12 mini

From 82% to 76% in 6h in complete stand by on Wi-Fi.

From 76% to 73% in 6-7 min using only WhatsApp...bad very bad.

But i noticed in settings it switched from LTE to 5g auto by itself! :/ (I haven’t 5g in my town).

With this kind of drain I could do only 3-3,5 h SoT with a charge...using only WhatsApp!

Let's see if this the general feedback.

Now, I'm on the fence about returning it (have until the 8th Jan to do so) or hope that Apple fixes it on a IOS update. If not, back to Android but, apart from the Pixel 5, which is already too big for my liking, I don't see any other viable alternative.

I am suffering from the same issue. My iPhone 12 pro max 128 battery is draining very fast. I spoke so many times with Apple care. And in the end they make test on battery using wifi. And they said it’s ok. But it is not. At all. Really I am very disappointed to buy this phone. With such amount of money. At least we deserve a good quality not a phone with draining battery

Hi 🍎🍐88,

The diagnostics they run at the GeniusBar and from Apple Support does NOT necessarily mean there is NO HARWARE issue if all the test pass. Nor does it have the sophistication to be able to identify and pinpoint the area the problem exists. If no problems are found during these DIAGNOSTIC test, AND you have an apple agent really interested in helping you, they will escalate this issue and start the process of getting your phone in to apple so actual engineers can try replicating the problem. If reproducible, they will then actually inspect the hardware directly and testing it with oscilloscopes, data analyzers, meters, etc... all the specialized equipment available only to the engineers. Don’t let them just blow you off like they do with far too many!

Hi.

Am following this thread from the beginning. Have exactly same issue, have already changed one handset no changes.

Took Iphone 12 pro as a high end device to use with double SIM. Battery life with 2 SIM cards is terrible, am charging twice a day. Batery draining during stand by and this drives me crazy.

I am not willing to agree that premium device for 1120 eur has to operate with such poor battery life. Hope apple is able to fix this, otherwise I am considering to return till 08 January.