iphone 12 pro max battery health degrading

Awais_295 wrote:

I bought my iPhone 12 Pro Max 128gb in February 2021.

Sadly I’m on 90% battery health.

At one point the % dropped a few digits within a month.

Yup, what you're seeing is absolutely normal. On average, you'll lose 1-2% a month.

amalia185 wrote:

Yeah why does the battery health drop so quick . 🥲

Real battery capacity doesn't actually drop something like 4% overnight or in a week/month. The battery health number updates at seemingly random times. It's an estimate of remaining battery capacity based on constantly monitoring the battery parameters, including temperature, current, and voltage. But if you're at 90% after almost a year of regular use on battery power, that's typical.

I totally understand that it feels like the battery health number staying at the same point for months seems like a good thing, but it may not reflect how the battery is actually degrading as it's just a matter of when it updates.

Just plug your device in overnight to charge it. Use it as you normally would. If you need additional charge during the day, just plug it in.

But, if you have water damage, it's not a good idea to plug in the device. You should have it serviced.

No, I don’t have water damage. It’s just a warning saying that there was liquid detected and that I should get rid of the liquid before I plug it in.

Even if I did charge overnight and that warning came up, the same thing would happen, where the settings app updates the battery even though it wasn’t even plugged in for a full minute. I’m asking if that will have any negative effects on my battery staying at the same level for hours on end in the future.

crystal_star wrote:

Since it wouldn’t be at least 16 hours since I last unplugged before plugging it back in again (yes, that’s a rule I made), I was wondering if this would cause the battery health to decline, since I was doing three different charge cycles that were all within one hour of each other, and as everyone knows, charging too much is never what you want to do.

There is nothing specifically good or bad about plugging in and disconnecting multiple times within an hour other than perhaps physical wear on the port, connector, and/or cable. I do it all the time and that's never resulted in poor battery performance. The power management system handles it all just fine.

crystal_star wrote:

So the water warning popped up after I just plugged my phone in, so I unplugged it, shook the water out, then plugged it back in again. However, it showed the same message, so after using a hair dryer and everything, it finally charged after I plugged it in a third time, which was what I really wanted.

You did do pretty much all the wrong things to do when your phone gets wet. 1) Don't plug it in until it has dried for a couple of days. 2) Never use a hair dryer as it can just force water deeper into the phone, causing even more issues.

iPhone12promaxbattery wrote:

I have used only 6 months my iPhone 12 Pro Max

and my Battery percentage is dropped by 94% already

What's the problem? Apple's ratings are for 80% battery health after 500 complete charge-discharge cycles. For normal users (25 cycles a month) down to 94% after 6 months is in line with expectations.

That’s as per my brother as well who is an apple tech. But i purchased my iphone 12 pro max june 2021, and it took me 8 months before my battery health went down by 1%. Literally 2 days ago. I was even a bit sad when I found out because my brother’s 11 pro max took 10 months for the batt health to go down by 1% and i just thought I wasn’t taking care of my phone properly. Turns out my brother told me that’s it’s good enough.

So what I do to take care of my phone is simple. Every week I drain my battery once. I charge my phone when battery becomes low, not as soon as it gets to 20% but I wait for it to become 10% to 15%. I don’t use my phone when I’m charging it. And I don’t sleep when it’s charging.

Now some other stuff I do are things that not other people can handle. Because I am a very simple person, my only widget is weather and clock (4 clock thing as my country is different from my parents and siblings). I don’t use face Id as I find is ridiculous (sorry). I only have 1 game lmao. It’s only to ease my boredom during class or during breaks while I’m studying. I have turned off or deleted built in apps that I knew I didn’t need (eg: stocks) so my phone only consists of mostly medical apps and the limited social media that I use.

Lastly, my phone is mainly used just to contact my friends and family, check updates in my university forum, reach out my professors, location services, and mainly to read and watch on leisure time. Idk if it sounds boring but I think all these helped me a lot to prolong my battery life. My iphone 8+ back then took 5 months before it went down to 99% batt health.

Hope this helped.

I purchased my iphone 12 pro max june 2021, and it took me 8 months before my battery health went down by 1%. Literally 2 days ago. I was even a bit sad when I found out because my brother’s 11 pro max took 10 months for the batt health to go down by 1% and i just thought I wasn’t taking care of my phone properly. Turns out my brother told me that’s it’s good enough.

So what I do to take care of my phone is simple. Every week I drain my battery once. I charge my phone when battery becomes low, not as soon as it gets to 20% but I wait for it to become 10% to 15%. I don’t use my phone when I’m charging it. And I don’t sleep when it’s charging.

Now some other stuff I do are things that not other people can handle. Because I am a very simple person, my only widget is weather and clock (4 clock thing as my country is different from my parents and siblings). I don’t use face Id as I find is ridiculous (sorry). I only have 1 game lmao. It’s only to ease my boredom during class or during breaks while I’m studying. I have turned off or deleted built in apps that I knew I didn’t need (eg: stocks) so my phone only consists of mostly medical apps and the limited social media that I use.

Lastly, my phone is mainly used just to contact my friends and family, check updates in my university forum, reach out my professors, location services, and mainly to read and watch on leisure time. Idk if it sounds boring but I think all these helped me a lot to prolong my battery life. My iphone 8+ back then took 5 months before it went down to 99% batt health.

Hope this helped.

jena9694 wrote:

I purchased my iphone 12 pro max june 2021, and it took me 8 months before my battery health went down by 1%. Literally 2 days ago. I was even a bit sad when I found out because my brother’s 11 pro max took 10 months for the batt health to go down by 1% and i just thought I wasn’t taking care of my phone properly. Turns out my brother told me that’s it’s good enough.

I wouldn't be surprised if the actual battery health is less than 99%. I've gotten the official battery diagnostic from Apple (during a battery replacement service) and it was a few percentage points lower than iOS was reporting. I've also used other tools (coconutBattery for Mac) that go deeper into the actual battery statistics including cycle count. There are some really oddball behaviors with iOS battery health, including where people saw anywhere from 3-7% drop overnight. But in reality it's not a real time indicator of battery health, but an estimate that gets updated on its own schedule.

I’ve noticed the same thing on my $1500

iPhone 12 Pro. After juts over a year

my battery max power is down to 88%

and I only use the apple 2 amp charger.

last couple of weeks I’ve noticed that by about 3 pm the battery is down to 20%

I am a very BZ anesthesiologist and I hardly use the phone except I occl text

and check email. All the open sites are canceled and Wi-Fi and blue tooth are turned off. My old iPhone 5 battery had lasted at least 5 to 6 years before the battery charge capacity had dropped t 96%

with this new fancy super expensive phone after a mere 12 months I’m down to 88%. At the rate I’m going I’ll need a new battery within 6 to 12 mo. This is an outrage and a disgrace This shouldn’t be.

There should be a recall on this product for premature battery decline

this is not a 400 dollar phone. It’s 3X that

and I should get at least twice the battery life of an ip5. I call upon the masses to fill a recall on the IP12. Something has to be done

edwin

Batteries are batteries. Apple doesn't necessarily have any access to special lithium-ion battery technology that other companies can't get. They rate them for 500 cycles to 80% battery health, but these are just round numbers and the standard for warranty replacement. Other than that, there's nothing much you can do about it. Batteries are really the weak point for any portable electronics these days. But it's only $69 in the US to replace it, and most of that cost isn't about how the much the battery actually costs Apple.

So I'm at 87%, and I want to charge at around 4:30 PM every day. The thing is, on Tuesdays and Thursdays, I have evening classes, so if I plug it into a power bank and bring it with me, can I still use my phone? I read articles saying that using it while it's on a power bank is detrimental for the battery, while others say it's fine. Which one is it? Keep in mind I want to have it on screen the entire time it's plugged in.

crystal_star wrote:

So I'm at 87%, and I want to charge at around 4:30 PM every day. The thing is, on Tuesdays and Thursdays, I have evening classes, so if I plug it into a power bank and bring it with me, can I still use my phone? I read articles saying that using it while it's on a power bank is detrimental for the battery, while others say it's fine. Which one is it? Keep in mind I want to have it on screen the entire time it's plugged in.

Those articles are wrong. Using the phone while it is plugged in is not detrimental.

There is nothing wrong with that.

crystal_star wrote:

So I'm at 87%, and I want to charge at around 4:30 PM every day. The thing is, on Tuesdays and Thursdays, I have evening classes, so if I plug it into a power bank and bring it with me, can I still use my phone? I read articles saying that using it while it's on a power bank is detrimental for the battery, while others say it's fine. Which one is it? Keep in mind I want to have it on screen the entire time it's plugged in.

There is nothing wrong with using an iPhone while it's charging. The only issue would be the quality of the power source. Apple manufactures their own charging cases, and the basic idea is to use while it's powered by an external source.