iphone 12 pro max battery health degrading

My Iphone 12 pro max was 100% until iOS 14.5.1 came out. After that it started to drop 1% per week no matter how I charge the phone. The strange part is that every 1 week, on every Tuesday it drops 1% battery health

I have a regular iPhone 12, got it on launch day back in October. I never let it go below 40% (it rarely even goes below 50%), and I always charge it to 100 and leave it in for like 5 minutes before unplugging. The max capacity stayed 100% till March 7, when my wifi suddenly turned off overnight and it drained about 30% overnight trying to connect correctly. The next day, the capacity was 99%, but I knew exactly why that was the case. Ever since that day, I've been turning on airplane mode every night after I unplug (I charge it up to 100 before I sleep and then unplug right before I go to bed). Just yesterday, the capacity dropped down to 98% for no apparent reason. I literally didn't do ANYTHING different; I plugged it in when it was like 55% and charged it to 100%. I thought that by turning on airplane mode every night, it'd stay at 99% for more than 5 months, as it stayed 100% for a little more than 4 months. But no, it just HAD to last 3 months. Ugh. It's also weird because yesterday marks the 8-month-anniversary of me getting this phone. Does anyone know what I did wrong? I can't figure it out. Also, is there a way to completely hide the battery health info to make it look like the image attached below? I'd much rather not see it at all than to check it every 10 minutes out of paranoia. It gives me a lot of anxiety.

I don't have iCloud backup on, it takes up a lot of room. And charging overnight with my old iPhone 7 was a bad experience, so I never wanted to do it with my iPhone 12. I'd rather unplug it right before I sleep. My friend who charged her iPhone 12 overnight had her capacity drop in like 2 days. Same with my other friend who has an iPhone 11 that's already at 85% capacity after a year and a half.

Yes, batteries are consumables, but how come other people have theirs higher than mine when we do the exact same thing? I don't understand that and I wanna keep mine like theirs.

for years, i've heard that charging overnight is really detrimental. my capacity will lower for sure, which is the first thing I want to prevent. It could explode overnight. And it could drain down to 99% right after I go out the door.

That’s the point. But there are people keep on saying the it is normal and ask us to wait till 80% with warranty. If extremely fast like me, then congratulate us that we should achieve 80% very soon. This kind of reply or suggestion is really useless

we are discussing on the issue of abnormal battery or not , u keep on saying that all of us are normal . Is 1% drop per week or 3 cycles to be considered normal in your sense ???? U never give any comment on this . Just congratulate me to have a battery change soon. THE SENIOR MANAGER WAIVE this battery change for me as this is too abnormal !

Use your phone however you like.

Personally, I do the opposite - all my chargers are wireless except the one in my car, and my iPhone never spends more than maybe an hour per day not connected to a charger if I can help it.

I take it off the charger, walk to my car, and immediately connect it to my car charger. When I get home, I take it off the car charger and immediately set it on a Qi pad. It also sits on a Qi pad all night, if I use my phone for a few minutes it will immediately go back on the pad.

Really, I don't care what Battery Health has to say, but if it hits 80% before November I might get the battery replaced, but odds are I will trade it in for whatever iPhone Apple releases next as I have every year anyway.

u are using your battery in a killing way, that’s why u are at 90% in 9M. I was using my battery in a conservative way, but I was 92% at 6M. How can U compare your case with my case ? If I were using in your way , I may be 80% at 6M. This explained that mine was abnormal ! That’s why apple replaced for me even it was at 92%!

well... looks like i was right. the capacity just dropped to 97 today in the middle of the day for no apparent reason. it literally was 98 right before i opened some messages, and just dropped right after. it only stayed 98 for 10 days! i have a feeling this is going to keep happening and that my battery is indeed defective. again, i didn't change my charging patterns, charged from like 55% up to 100 and unplugged 5 mins after. Did this every day. There's no way that snapchat is causing all this because even when this phone was new and i used it a lot, my capacity stayed at 100 and 99 for so long.

U still miss the point , we are discussing on the issue whether it is a normal battery or not. U keep on saying that other are normal but many of them Are not killing the battery like u?? Should we all try to kill our phone in order to get replacement of battery before 1y warranty like u ???that’s ridiculous . I have 2 y warranty but I will not bother it as defective is defective.

I was 1% drop per week , I told U many times . 1% drop per week ,remember 1% drop per week .

Genius Bar manager also commented that 1% drop per month was not so normal at all .

i am tired , just stick to your way of usage

once again, 1% drop per week in my case !!!

U said that nobody here except apple could decide , now U said that only apple engineers can decide . GOOD.

remember , the decision on replacement is either by Genius Bar or the repairing guys inside the apple store but Not engineers. Even if u are world famous engineer , u cannot.

that’ all. I will not discuss with you anymore

gilbertfromscarborough wrote:

That was a SHOUT OUT for all to see. I was not literally asking a question of Apple. More like Hey, you can do better.

Then, kind of pointless. Apple is not reading here. The only people paying attention are other users. While there are probably many things we could do better on, changing how iPhone batteries work probably isn't on the list.

You can make sure that Apple sees what you're saying by posting here:

Product Feedback - Apple

Obviously, a bit less emotionally rewarding as you won't get any responses but it's the one place that might actually make a difference.

GGGGCLK wrote:

No, APPLE is reading but they will not help and only acts as administrator. I received one email once that my comments were deleted by APPLE as they believed that my comments were arbitrary.

They read to make sure people conform to the terms of use. They do not read for suggestions. They do not forward information on to other departments.

No one reading here can make any changes in how Apple batteries or iOS software works.

I think your efforts to help the people posting about their battery issues would go a really long way if you could reference where Apple has stated this because, well nothing speaks louder than referencing their official statement about the newer battery technology and it’s effect on the 12 series of batteries and how the scale has changed.