No such thing la.. I already stopped using wireless charger for a year, and my battery life is 84% now. 12 series is really having hopeless battery life. Got my 12PM on day 1 on MY launch date.

bought my 12P on the first day of launch, am on 85% now. disappointing battery capacity aside, I figured that it's the heat from charging that's draining the health.

had been using the 5W (wired) for the first 7 - 8 months or so and only a slight drop in battery health but when I switched to the higher wattage (20W and also wired) for fast charging, that's when I noticed the battery health dropped dramatically (at least 5% within the first 3 months).

already switched back to the 5W and it appears to have stabilized itself at 85%.

I can't find the video, but someone did some research to say the battery health algorithm is just that, not accurate.

Even both my sis and mum's iphone shows 70%, it shows battery health good, the phone just randomly shuts down. After changing battery all good. Apple reseller QCD was saying it could be some other problem. 

bought my 12P on the first day of launch, am on 85% now. disappointing battery capacity aside, I figured that it's the heat from charging that's draining the health.

had been using the 5W (wired) for the first 7 - 8 months or so and only a slight drop in battery health but when I switched to the higher wattage (20W and also wired) for fast charging, that's when I noticed the battery health dropped dramatically (at least 5% within the first 3 months).

already switched back to the 5W and it appears to have stabilized itself at 85%.

yeap, it's inaccurate. the numbers shown are just an "indication" of how long one full charge can last you. it's the chemical age of the battery and it is calculated based on the number of charge cycles divided by a myriad of factors within the iPhone itself which Apple will not disclose. this is why every user experiences different scenarios.

for me, I noticed that the battery health number dropped after I used a fast charger and it stabilizes after I reverted back to 5W so that works for me.

Apple has a funny way of making sure the iOS works properly so if the chip discovers that the battery is no longer at its peak, it will slow down computing power (eg: performance) in exchange for up time.

this is also why Apple was sued by users for deliberately slowing down older iPhones.

To be fair, fast charging is known to degrade the battery faster comparing to Low voltage charging.

Yeap, heat and lithium ion battery aren't exactly a pair matchmade in heaven. There's always the issue of managing heat when it comes to charging and Apple went to the extent of introducing "optimizing charging" to make sure the phone doesn't charge past 80% until "it is time" to unplug. Just to probably extend the battery life for what, 2 weeks?  :confused:



That’s one angle. If charging overnight no problem. 5w low blah blah. Then why Apple introduce optimize charging. But again.. generally don’t do overnight charging.


iOS 15.4 will introduce Face ID (with mask on). Reports from beta testers so far has been encouraging but unsure how much it will compromise on security though.

Good but not as good as full face scan. To me it’s good enough also.

In respect of battery health percentages, I guess no users should actually be bothered with it, in fact, it shouldn't even be there in the first place if it weren't for lawsuits filed by consumers on other parts of the world. Apple put the numbers there because they "have to" not because they "need to". So just use the phone and charge it in any manner you like or how frequent you prefer because chances are, you'd switch to a new phone before the battery starts giving you problems.

Besides, battery replacements aren't exactly expensive so yeah, that's an option.

Battery replacement not expensive? Says you. But to me… if you can afford iPhone. Why can’t afford the components. Same as u can buy bmw or merc. U can’t afford do maintenance and change parts.

yeah, the last I checked the price for battery replacement ranges between RM300 - RM400 which is about 10% of the price of the original phone (when bought) and i would have the battery replaced rather than do an outright purchase of a new iPhone for no apparent reason (especially when the new iPhones is not a significant upgrade).

Hi. about the battery replacement quote, did you quote it at the machines service centre or other phone repair stores? I am planning to change my 12 pro's battery cause it has already depleted to 84% 

Hi. about the battery replacement quote, did you quote it at the machines service centre or other phone repair stores? I am planning to change my 12 pro's battery cause it has already depleted to 84% 

yeah, the last I checked the price for battery replacement ranges between RM300 - RM400 which is about 10% of the price of the original phone (when bought) and i would have the battery replaced rather than do an outright purchase of a new iPhone for no apparent reason (especially when the new iPhones is not a significant upgrade).

Hi. about the battery replacement quote, did you quote it at the machines service centre or other phone repair stores? I am planning to change my 12 pro's battery cause it has already depleted to 84% 

[UPDATES]

Happy to report that seems like the battery health percentage has stopped deteriorating / stabilized in iOS 15.3.1 - i did not notice any crazy drops like how it was before prior to 15.3.1. Fault reporting previously?

Software fix i guess.

Same. Mine had been stuck at 84% since 15.3 and till now. No more massive dropping. Looks stable now.

Haha mine also stucked at 84% now somehow.

My battery health journey:

*Purchased phone 11/2020
14/5/2021 99%
18/5 98%
26/5 97%
30/5 96%
25/7 95%
1/8 94%
22/9 93%
27/9 92%
05/10 91%
28/10 90%
22/11 89%
07/01/2022 88%
10/01 87%
16/01 86%
29/01 85%
18/03 84%

Haha mine also stucked at 84% now somehow.