I suspect it’s the wireless charging as well. I’ve been using the MagSafe Duo charger since launch. Got my 12 PM on launch day as well and my battery health is at 94%. I’ve only been using wired charging for my previous phones.

I changed to wired charging few months ago when it dropped to 96%. I noticed long term streaming also will further deteriorate it and stop using it for long term streaming (like watching live broadcast) when it was 94%. It helps as it retained a month without dropping, I last checked last week and just checked it becomes 92% now. Holy. I guess I really don’t want to bother it anymore and hope it drops more so that I can change to a new battery.

My battery health is at 89%. But the battery cycle remains constant. I think it is a possibility the magnetic wireless charging had got to do with it.

FYI, my wife iPhone 11 has been for nearly two years now. Day to day overnight charging, streaming videos and zoom most of the time but her battery health is only at 87%. This is getting ridiculous.

If it is true we should do something about it and demand free battery replacement.

In the 3 months Battery Health drops by 7%. I guess I will be claiming phone battery under warranty.

Idk why iphone so concern about their battery health as it sound dumb as an android user, dont get me wrong but its expected to have lower battery health, even your car every 2 years atleast will need to change a new battery.

Just use it and dont bother to check.

don't misjudge. many of us iphone users are very particular and care for our phone and we want the best out of our device. and if there's issue we'll sort it out together. if you go to android thread and talk about battery related i bet you'll get less response as android user are more concern about bugs or hardware issue.

Rich ppl that can afford won’t care about these small stuff

Poor that act rich will care so much even for 1% drop

I work in portable electronics industry and we also have lithium ion packs in our products. What is happening with IPhone batteries are very normal practice, typically the vendor sells us the pack with minimum capacity rating and normal capacity rating. So they will manufacture or deliver with 105 or 107% of the minimum capacity in mAh, and I believe like us, Apple is calculating the internal fuel gauge based on 100%. So what happens is when the battery degrades between 107-105 to 100%, you don’t see it even if it takes a few months. And once a pack has degradation due to various conditions (dendrites etc), you will see it once it drops below 99%. For my case as we are industrial and professional products we have a fuel gauge in mAh as it charges upwards to full (4.2-4.3V) and it recalibrated with every single charge.

Lol... You on 12 Pro Max already right? No need to upgrade la...

But then again, hopefully they will give the damn charging brick this round.  

Is there anyone officially complained to Apple? I think we need more Americans to make noise.
Yes, 1 week 1%. My case was it stopped quite long at 94% almost a month then suddenly dropped to 92% in one week.
And now another 1% in almost two weeks. I'm giving up already.

You have better practice compared to me, I don't care anymore now.

Mine not though. Not sure if those apps also did some changes and caused they can’t read from SMS.
Yeah, your wife’s situation is really unexplainable. At least I still use it and it’s my primary phone.

If it's her primary phone, battery health can maintain high %.  Cuz battery only can maintain strong if u keep using it.

I've a feeling 13PM is going to be quite similar to 12PM, and there's no guarantee the battery life will be good enough for whatever new functions. I'd adopt a wait-and-see before deciding whether to change or fixing a resale price for the 12PM. 

Yes, same here actually. I don't think it's worth it for 12PM to upgrade to 13PM if it's just for the 120hz display....so far I think that's the only major difference that concerns me. However, it's not enough to convince me to change from my 12PM to 13PM.

Will definitely wait for 14 or 15 

With this kind of battery health, I don't think my iPhone can fetch high price if I'm selling it off.

Iphone 13 is not as exciting as iphone 12. Was thinking to upgrade to watch 7 since rumors saying it would have flat design. Frustrating to see same design, only bigger screen. Atleast aw6 got oxygen meter, this one nothing interesting! The only exciting thing is ipad mini.

Yes I aware of that. Now I not sure if a 12 pro still a good buy when 13 is very good

Hello guys, need some help here.

Thinking to upgrade from iPhone 6 Plus to either iPhone 12 pro 256gb or iPhone 13 pro 256 gb.
I think Iphone 13 pro max 128 gb maybe the storage is a bit low.

Price difference is around 700rm plus (coz contract in Sg) between iPhone 12 pro 256gb vs iPhone 13 pro 256gb.

I’m a bit behind in terms of what the new iPhone could provide nowadays haha so thought best to check with you all.

I know that the camera is different for iPhone 13 pro but not sure is it worth it.

Thanks!

Oh gosh, my iPhone 12 PM, one more month to 1st anniversary, battery health down to 91%. Maybe by next month, 90%.

1 year 10% depreciation of battery

But to be honest, my usage is also very heavy. 

U know what’s Apple policy on battery change while still on warranty?

i see that i'm not the only one. slightly into 1 year now and the battery dips to 91% - starting to think that the fast charger may have contributed to the premature degradation (heat) so for now, i've switched back to the slow poke 5w charger that came with my iPhone 6S.

im using Pro , and having same situation like you....almost1 year, but battery also at 91% now

i stopped using the casing now, felt iphone casing actually trapped the heat and might causing harm to the batt ?

Let’s hope the batteries on the 13 series is more robust

Actually to solve this issue, all Apple has to do is remove that battery health percentage. No other Android phones provide this info.

Technically slow charging is worse. Cause of the duration and heat it causes. Where constantly battery is charged.

My 11 months old 12PM battery health is at 86% and warranty end on 12 November. Not sure i can claim before it ends 

Agree, it should drop till at least 82% when warranty ends. The battery on my 12PM been dropping average 1% half a month for me since iOS 14.6 update.