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iOS

iPhone 12 Pro Max Battery Drain

maxwilkes
4: Newbie

I just can’t put my finger on this but is anyone else suffering from severe battery drain? My iPhone 11 Pro Max drained 2% last night while my 12 Pro max drained 15%.

 

yesterday I got less than 5 hours of screen on time before my 12 Pro Max ran out of battery. Whereas my 11 Pro Max already has close to 3 hours screen on time and still over 75% battery remaining! I just don’t get it.

 

I’ve factory reset and setup as new (so not from a backup) and still the same error. Am also running the latest iOS (14.2.1).

 

Battery capacity says it’s at 100%. Apple claim my battery is perfectly healthy. That’s not healthy! I’ve checked the battery section of settings to see if it’s a rogue app or process and it’s not. Battery usage shows as NIL overnight yet it still lost 15%. Not even on 5G, all it does overnight it stay on WiFi and fetch background updates such as email, social media etc. Same as the 11 Pro Max yet that loses 2% while the 12 Pro Max loses 15%. Please advise?

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21 REPLIES 21
conysun
2: Seeker

Is the battery's problem?  But I still think you can try some easy ways first. Turn on the Low Power Mode. Go to: Setting> Control Center> Customize Controls> Low Power Mode. Restart your iPhone. Find out the APPs that Drains Battery. Go for Setting>Battery> Battery Percentage. Then you will find some APPs that need a lot of power. If they are not so important, just delete them to extend the iPhone battery life. Use Professional iOS System Recovery Software (This one is on 40% off until Dec. 4, 2020. https://www.tuneskit.com/special/thanksgiving-sales/)Reset All Settings. Just go to: Settings > General > Reset > Reset All Settings. If those cannot work, change your battery.

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BandOfBrothers
17: Community Champion

Has an Apple Genius Bar run a diagnostic on the iPhone already ?

Who supplied the iPhone to you @maxwilkes  ?

Current Phone > Samsung Note 20 Ultra 5G - SM9860 Snapdragon.

Samsung One Ui 3.1  / Android 11.

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maxwilkes
4: Newbie

Vodafone did on a monthly contract. I’ve tried everything, I’ve factory reset twice now and setup as new (so not restored from backup). Last night it went from 62% down to 46%. During the day yesterday it drained roughly 2% per hour as well. I clocked less than an hour of screen on time yesterday as I wanted to test just how bad the drain was and...well...it went from 83% all the way down to 62% with me doing pretty much nothing all day. Meanwhile the 11 Pro Max clocked over 5 hours screen on time during the day and the battery usage was consistent to a decent usage if you get me, and lost only a few percent last night. By a few percent I mean LESS than 5% over the same period the 12 Pro Max lost around 15%. Something is definitely wrong with this battery...but I’m worried as Apple claim it’s perfectly healthy as they’ve ran diagnostics on it...this isn’t healthy.

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StuBFrost
4: Newbie

It’s nothing to do with the battery it’s ios14 that’s the issue. Lots of people complaining about battery life with ios14 so you’re stuck until Apple admit there’s an issue and fix it. 

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maxwilkes
4: Newbie

I don’t have the same issue on my 11 Pro Max though...and that’s also running iOS 14.2!

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Evie
Moderator

Hey there @maxwilkes - I appreciate how frustrating this must be, especially with the device being brand new! If you feel that your device is damaged we can investigate this and arrange a repair if needed - I would advise to drop us a message on social media, please be sure to include a link to this forum and your username so you're not having to repeat yourself.

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tehwolf
2: Seeker

I also have this problem.  I have a sim unlocked iPhone 12 bought from Apple direct.. I run it with two SIMs, en eSIM from EE and a work provided vodafone SIM.  I had an identical set up with my previous iPhone and had no issues.

 

I get a ~20% drain overnight when both SIMs are active in the phone but if i remove the Vodafone SIM it behaves more like i am used to (i.e. go to sleep with 100%, wake up with 99-100%.

 

it's almost as though the voda sim is preventing the phone from sleeping somehow.. I don't think that this is isolated to the voda network - read a post on the apple community forums about someone experiencing the same issue with an O2 SIM. 

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Mark
Moderator

Hey @tehwolf 👋 This issue seems to be affecting customers using both a eSIM and a physical SIM at the same time. It appears Apple are aware of this and are looking into it. As your phone was purchased directly through Apple, you'd need speak to them directly regarding taking a look into this and possibly repairing/replacing it if this is a hardware fault. In the mean time, does this still happen if you place the phone into the low power mode overnight?  You can do this by following these steps 👉 Settings - Control Center - Customize Controls - Low Power Mode.

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tehwolf
2: Seeker

Hi @mark thanks for the reply. I was just posting here to support OP’s message. Aware that if it’s a hardware issue I’ll have to go back to apple direct, but your comment about apple knowing about it is more than I’ve heard from apple at their forums, so is useful :Winking_smiley: 

 

just wait and see now I guess. 

thanks

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maxwilkes
4: Newbie

Just to confirm...I'm getting battery drain using just ONE regular Vodafone Nano SIM.

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Mark
Moderator

Thanks for the information @maxwilkes, I'm sure this will be resolved soon and when we have an update, we'll get it posted here for you.

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maxwilkes
4: Newbie

There’s literally a 49+ page thread here on the Apple Community whereby owners of the iPhone 12 series (12, 12 Pro, 12 Mini, 12 Pro Max) are experiencing battery drain. Those with dual sims are reporting it as are those with single sims. Apple still refuse to acknowledge there’s a problem. There’s clearly a problem.

 

https://discussions.apple.com/thread/251956914

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maxwilkes
4: Newbie

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This is appalling (this is my replacement device btw). 1 hour 45 minutes screen on time...that’s all I’ve got out of the 12 Pro Max before it’s down to 29%! The rest is just idle drain! I also noticed that 2-4 minutes on Safari was enough to drain it 2% (that’s 10% every 20-40 minutes). I can squeeze well over an hour into Safari with the 11 Pro Max before it loses 10%. Funnily enough my 11 Pro Max has over 7 hours screen on time and still has 23% remaining! And that’s including the minuscule drain of 2-3% it has overnight! The 12 Pro Max, however, is draining at an exponential rate...my replacement device is no better. Spoke to Apple yesterday and they were absolutely oblivious to the problem.

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Mark
Moderator

I understand this issue would be frustrating @maxwilkes and not what you'd want from a new phone. If this is a manufacturing fault, it will be covered by your warranty. Visit your local Vodafone store, or pop us a private message through one of our social channels and we'll be able to arrange for this to be sent for repair for you.

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maxwilkes
4: Newbie

I have a THIRD replacement scheduled to arrive tomorrow. But judging by what everyone is saying on the apple community this is either a manufacturing fault that will result in a recall program (if apple have the decency to acknowledge the issue) OR it’s a software/modem firmware/carrier issue which they’d need to resolve with a patch. The thing that makes me angry though is apple are sitting in silence and basically dismissing me when there’s 72 pages of people reporting similar issues.

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maxwilkes
4: Newbie

Can confirm THIRD replacement is also experiencing the same drain. What's worse is I held out for the release of iOS 14.3 in the hope this would address the battery problems but I can confirm that it hasn't. At least not for me.

 

Following the latest responses to the now 90+ page thread on the Apple community I can see that 14.3 addressed the battery drain for some networks (namely EE and Sky Mobile) as they received a separate modem firmware update. But Vodafone UK/Vodafone Europe are among the list of carriers that received no such modem firmware update and are still suffering from severe battery drain.

 

I tried to return the device today as I'm now getting fed up and don't want to pay £68 a month for this...at least not until the issue is fixed...but I was informed that I am now past my returns window and all they can do is offer me yet another exchange. I've had three already!!! An exchange will NOT fix this issue.

 

I need to bring this to Vodafone's attention as this issue seems to be isolated to their network alone. I can confirm that the EXACT SAME Vodafone UK SIM card works FLAWLESSLY (and with no drain) on the older 11 Pro Max. So that tells me the issue is either with the iPhone hardware or with the new modem firmware (as the 12 series uses a new Qualcomm modem instead of an Intel one). Either way, the issue remains unresolved!

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vasilev3
2: Seeker

Hi

Guys after the third exchange from Apple find out this is not from the Iphone specialy my one is from the sim card.

I'm on O2 and during the night my battery was drain from 73%  to 53%.

Last night i've put an EE sim card and battery gone from 71% to 68% which is significant change.

So in my case found the issue.

So i have to call O2 and find out what we have to do.

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maxwilkes
4: Newbie

It’s not an issue with the SIM card itself as my SIM in the 12 Pro Max had issues whereas in the 11 Pro Max it did not. On the now 100+ page thread on the apple community EE has stood out as one of the networks without drain. Not sure why that is but the issue does seem to be isolated to specific European carriers of which Vodafone is one. Unfortunately I’m contracted to Vodafone and my device is locked to them so I have no way of telling if EE will solve the problem for me. I think the affected carriers need to communicate with apple and work a solution. I am currently beta testing iOS 14.4 beta 1, which includes a new firmware update, and the drain is dramatically  better (anywhere from 4-10% in an 8 hour period...usually 4-6%...as opposed to 15-20% on earlier iOS versions). But it’s still no match for the 11 pro max (which lost only 2-3% in the same time frame using the same SIM). So there’s still substantial room for improvement.

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vasilev3
2: Seeker

Don't know but for me working when i changed the card dramatic battery saving.

Normal dranage over night is from 2 to 5% apple said.

Had lot of discuss with them as i said change 3 phones.

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