iphone 12 pro max battery health degrading

I got my new 128GB 12 Pro Max with blue silicon case on the 11/13 launch day. In the weeks since I’ve noticed the battery health has already dropped to 98%. I’ve only used public releases of iOS and haven’t installed any iOS beta’s that would have enabled extra logging functions that could have negatively impacted battery life and health. Optimized charging has been enabled the whole time, and it’s only been charged with a USB-A cable and an Apple 5W charger. I don’t see any apps standing out as battery hogs, and I’m using my phone as much as I did my 11 Pro Max. I’m shocked to see the battery health drop below 100% in the first 6 weeks, and at this rate it will be below 90% by summer 2021. Has anyone else noticed their battery health has dropped below 100% on a 12 Pro Max?

iPhone 12 Pro Max, iOS 14

Posted on Jan 3, 2021 10:50 AM

Reply
Question marked as Top-ranking reply

Posted on Apr 19, 2021 5:51 PM

It has nothing to do with chronological time. It is “80% is normal after 500 full charge cycles”. A full charge cycle is from 0 to 100% (or combinations that add up to 100% such as 20% to 70% twice). And you should never let it go to 0% intentionally; that WILL shorten the capacity of the battery if it happens frequently. Ideally, charge it when it gets to 20%, and charge it overnight, every night, with Optimized charging enabled.

827 replies

Aug 31, 2021 12:50 PM in response to Lawrence Finch

Since you know so much, Larry, how about addressing my post? Why is my iPhone 11 Pro still at 100%--checked just now and my newer by a year, iPhone 12 Pro is at 96%--using the same types of chargers, same usage, etc. as my old iPhone 8 that didn't show such degradation within a year. Instead of being so condescending towards others, I cannot fathom how you're able to get consulting jobs with your attitude and your pompous display on LinkedIn, how about trying to either be helpful or be quiet? Repeating the same thing for points is pathetic.

Sep 8, 2021 6:51 AM in response to Macbrush

Regarding your deleted comment, posts that violate the terms of use get deleted, such as personal attacks and discussing Apple policies rather than technical observations.


You have read very little of the forum (let alone much of this thread) if you think all negative comments are deleted. This thread alone has hundreds of negative comments.

Sep 8, 2021 2:48 PM in response to stretch23

Has it ever occured to these people that you might find yourself in a situation where you cannot charge your phone and you absolutely need it to get to where you need to be?


What if you are stuck somewhere in the wilderness?


What do you do then when your phone dies in less than 6 hours?

You literarily might get found dead because you were not able to make a call or share your location when needed.


Look at this image from my iPhone 12 Mini. Absolutely no usage and it dropped 50% in 6 hours.


My Samsung S9, to this day, only needs a charge to 100% every 2-3 days on normal usage.


Already did the full reset and update. Still same results. I think I will return my iPhone. Sadly this is also my first apple device since the iPod touch with the exact same problem back in like 2007.


Sep 8, 2021 4:46 PM in response to motorola-user

motorola-user wrote:

Has it ever occured to these people that you might find yourself in a situation where you cannot charge your phone and you absolutely need it to get to where you need to be?

What if you are stuck somewhere in the wilderness?

What do you do then when your phone dies in less than 6 hours?
You literarily might get found dead because you were not able to make a call or share your location when needed.

That is the most absurd statement I have seen in a long time.


What if your phone dies in 8 hours, and you are stuck in the wilderness?

What if your phone dies in 20 hours, and you are stuck in the wilderness?

What if your phone dies in 50 hours, and you are stuck in the wilderness for a week?

What if you fall in a river and your phone gets waterlogged and dies?

What if you drop it into a crevasse or off a cliff?


The bottom line is you should NEVER depend on ANY cell phone for an emergency like that, or, if you have no choice, you carry either solar chargers or high capacity battery packs or both. But cell phones are the wrong choice for emergencies in the wilderness.


You probably didn’t know, but most US National Parks and many State wilderness parks have NO CELL SERVICE. Intentionally. Because they want people to prepare properly for wilderness exploration, and not become overly dependent on fragile technology devices. That means filing travel plans with friends and relatives, and reporting your plans to ranger stations as you explore. And specifying when and where you should be expected next.



Sep 8, 2021 9:25 PM in response to Lawrence Finch

Haha, it seems you can’t backup your claims with hard evidence, which makes your replies absolutely irrelevant. There are people who have more information than normal folks, sure. And those people had revealed information saying Apple was planning on using cheaper batteries in the 12 series to offset the cost of including 5g components in their phones. What we’re saying is a fallout of the same.


If Apple were to include something like a dedicated chip inside an iPhone to monitor additional battery information, you can bet they’re gonna advertise it. And they didn’t, because nothing like that has been done. The only improvements that were made was from

the iPhone 7 to X and above, which you’ll still find mentioned on the page where Apple talks about battery health. Likewise, I don’t care what you say either, unless you have hard evidence to backup your gibberish.


Regards,

P.M

Sep 9, 2021 3:58 AM in response to Lawrence Finch

@Lawrence Finch


I did not expect a different answer from you. I have read your other posts clearly defending the performance of the iPhone battery. As I said in my previous post: Change the wilderness and [insert any other location where you cant charge your phone] and then put in the timeframe of, in this case, 6 hours.


As I also already said, im paying premium price and expect premium quality.

Which obviously is not happening. Did you see my screenshot?


You probably didn't know. But Sweden is literarily like one big US National Park. 😂

Sep 9, 2021 7:14 AM in response to motorola-user

motorola-user wrote:

Change the wilderness to just being out and about in the city.

Where there are thousands of people who will be more than happy to help you with any problem. You don’t really need a phone in an emergency; there are both individuals and emergency services within shouting distance.

don't know about you, but this phone cost 1500 USD here in Sweden. And frankly I find it unacceptable that the phone cant last 6 hours on standby. I'm paying premium price and therefore I expect premium quality.

Strange, my phone lasts 24 hours or longer on standby. If yours doesn’t make an appointment to have it checked out. Or figure out which app is using the most energy and get rid of it (believe it or not, lots of apps do stuff on standby unless you put the phone into low power mode - have you tried that). Go to Settings/Battery and it will display the heaviest users of energy.

ot only did I have to buy the phone, I also had to buy the 20W wall charger right. And now you're telling me to go and buy a battery pack for even more money. And on top of all this I have to carry around more stuff.

No, you DID NOT have to buy a 20W wall charger. That was a CHOICE you made. You could have charged it with any of the dozen or more chargers you have left over from previous phones and other devices, which would have been a much greener thing to do rather than buying yet another device that will end up in a landfill in a few years.

et me put it like this: No 😂

So what are you going to buy next? No high end smartphones come with chargers anymore. And if you visit forums you will find that every phone on the market has people constantly complaining about battery life. Let me suggest a dumb flip phone. It will go a week on standby, and it is sufficient for emergencies as long as you have network. And it will cost under $50. A smartphone is a luxury item; no one actually needs one.

Sep 9, 2021 7:27 AM in response to IdrisSeabright

IdrisSeabright wrote:


motorola-user wrote:


You probably didn't know. But Sweden is literarily like one big US National Park. 😂
Overflowing with recreational vehicles and American tourists?

🤣

There are US national parks and individual wilderness areas that are larger than Sweden. And that have no services. No electricity. No mobile service (because no electricity). Some with no roads, just a few hiking and horse trails. Where you can be a week or more away from “civilization” and truly on your own. People who need communications in such areas, such as archaeologists, wildlife trackers, etc, use satellite phones, not cell phones. And carry solar chargers. 40% of the land west of the Mississippi River (which means about 2/3 of the country) is government owned or government managed land. And much of it is wilderness.

Sep 9, 2021 8:08 AM in response to IdrisSeabright

I realized that. But your post was a convenient one to respond to.


I once worked on a large automation project for the Department of the Interior, Bureau of Land Management (BLM-one of the agencies that manages government land*). It was an awe-inspiring experience, seeing the extent of their responsibilities, the dedication of the thousands of staff, and the magnitude of their daily problems. I also learned about “AUMs”. Much of the public land is leased for grazing, and the herders are charged based on an AUM - Animal Unit Month. An AUM is one month of grazing for one head of cattle/bison or an equivalent for smaller animals, such as 2 sheep, 3 goats. They also manage logging, Christmas Tree planting and harvesting, wild horse management and adoptions, oil and gas leases, and many other land-based services. Our project was an updated order-entry system for these services. I say “Update”, but it was actually to replace a totally manual system.


*There are actually 3 agencies that manage Federal land; BLM, Forest Service, and National Park Service.

Oct 16, 2021 9:13 PM in response to stretch23

Also this is unrelated but is it safe to use your phone while charging? By that, I mean apps like Youtube and Tiktok, which do take up more battery than most other apps if not plugged in. The reason I use them more while charging is because well, charging is the time when you don't have to worry about running out of battery, so I take advantage of that time and use those apps for fun. I did hear someone say that it overworks the phone, while other articles I read say it's fine. The main thing I hear is that the phone definitely charges slower, but is that necessarily bad? I thought slow charging was better than fast charging. My phone also doesn't really get hot while using those apps.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

iphone 12 pro max battery health degrading

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.