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 [2020]iPhone 12 Pro/Pro Max Discussion Thread | V3, It’s a leap year.

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shaniandras2787
post Dec 9 2021, 10:13 PM

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QUOTE(soitsuagain @ Dec 9 2021, 04:30 PM)
It is just the 12 not sure about the 13 yet... considered yourself lucky as many here are below 90% already myself included  tongue.gif 

What a bummer. I know friends who own a XS and 11 with over 500 charge cycles and only at 85%

But is ok, the design is the sweetest afterall...  rclxm9.gif  nod.gif
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haha.. then i guess i'm "lucky" then sweat.gif and i doubt the 13s will have any issues like these. even at the point of release, all reviews already said that the 13 has an impressive battery rating (which should have been in the 12).

Apple tends to mess things up on their first releases of anything - i had to send mine in for a replacement on the 4th day of purchase because one of the volume rocker was uneven.

the 13 should have been the 12 cry.gif
shaniandras2787
post Jan 30 2022, 07:50 PM

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QUOTE(tennytyy @ Jan 13 2022, 03:05 PM)
today marks the 1 year anniversary of my iPhone 12 Pro and the battery health has dropped to 91%.
really disappointed with the battery quality, even my near 6 years old iPhone SE still stay strong with 87% battery health, LOL
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QUOTE(yayiyu99 @ Jan 14 2022, 05:13 PM)
That very bad after just 1 year. Is it true or you just make it up? sad.gif
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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%.
shaniandras2787
post Jan 30 2022, 11:36 PM

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QUOTE(dreamthief @ Jan 30 2022, 10:15 PM)
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.  tongue.gif
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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.
shaniandras2787
post Feb 8 2022, 01:29 PM

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» Click to show Spoiler - click again to hide... «


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.gif

» Click to show Spoiler - click again to hide... «


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.

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.
shaniandras2787
post Feb 9 2022, 10:39 PM

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QUOTE(dreamthief @ Feb 9 2022, 10:12 PM)
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.
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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).
shaniandras2787
post Feb 10 2022, 01:56 PM

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QUOTE(jmwm @ Feb 10 2022, 09:46 AM)
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%  blink.gif
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I got my quote last November with Switch - didn't bother with unauthorized repair shops.

84% battery health is still a healthy figure, there is no need for a replacement unless you noticed a significant drop in on screen time and it has affected your user experience as a whole.

generally, iPhone is still be very usable above 70%.
shaniandras2787
post Feb 23 2022, 01:44 PM

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[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.

This post has been edited by shaniandras2787: Feb 23 2022, 01:45 PM
shaniandras2787
post Apr 12 2022, 10:51 AM

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QUOTE(alexleow81 @ Apr 11 2022, 10:46 PM)
Same. Mine had been stuck at 84% since 15.3 and till now. No more massive dropping. Looks stable now.
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Yeap, mine is maintained at 84% too.
shaniandras2787
post Jun 8 2022, 01:47 PM

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since 1 battery cycle is defined as a charging from 0% - 100%, you can't really tell whether the battery cycle number is normal or not because every user has different ways of using the phone. mobile gamers will garner more charge cycles while corporate people will end up with less.

battery health percentage is a misnomer (if you asked me) as it doesn't really give you an accurate description of what it is supposed to, more like a suggestion.

if i remembered correctly, iPhone syncs all of its components (cameras, screen etc) with its motherboard but not the battery so yes, the battery can be changed without affecting its digital certificate but then again, when you decided to buy a used unit (not from an authorized reseller, i presumed?) - you need to be ready to accept all these adverse possibilities.

by the way, a genuine battery replacement costs only RM399.00 so any rebate that you "may" get when the times comes will be insignificant.
shaniandras2787
post Jul 4 2022, 07:04 PM

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QUOTE(fruitie @ Jun 27 2022, 11:34 AM)
Has anyone changed the battery for 12 PM? Where did you replace it? I'm thinking of replacing mine and probably using another year before switching to iPhone 15 next year or buying iPhone 14 this year, but this 12 PM will be my spare phone...
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QUOTE(fruitie @ Jun 27 2022, 06:38 PM)
I think it is RM 380 at Switch.

It is very bad... 81%... I guess it is bad for 12 series users. laugh.gif
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ohmy.gif how your usability at 81%, as in how many hours can you still get out of it?

mine is at 84% and seems to still be able to retain about 40% at the end of the day - use to be around 50% when it was bought new sad.gif

so sad.
shaniandras2787
post Jul 5 2022, 11:01 AM

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QUOTE(fruitie @ Jul 5 2022, 10:58 AM)
Still OK, around 30-ish to 40-ish with quite heavy usage. If low usage, can still do around 70-ish.
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shocking.gif that still a considerable good battery performance considering that the "battery health" is at 81%
shaniandras2787
post Feb 28 2023, 10:54 AM

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QUOTE(yhtan @ Feb 22 2023, 10:42 AM)
After 2 years and 3 months, my battery finally require replacement as the battery health degrade to 77%
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uwah.. that's some serious degradation.

i still remembered back then when the battery health percentage of mine drop rather rapidly, from 100% to about 88% in a short period of 1 year+ but after an iOS update (cannot recall which version), now the battery health percentage stayed at 84%
shaniandras2787
post Feb 28 2023, 11:37 AM

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QUOTE(syzwn @ Feb 28 2023, 11:28 AM)
same goes to me.. now stayed 84%. hopefully it stay until iphone 15 lol
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until the launch of iPhone 15 is confirmed no problem - their "planned obsolescence" will most probably set in after iPhone 15.

i'm not even sure that the health battery percentage is actually accurate or is just a "feel good" factor from Apple to let users know that their device is in "good hands", probably placebo to increase customer satisfaction ratings but then again, i don't have a great expectations for the battery pack in the iPhone 12 Pro to hold up well since it already had a bad reputation from the get go.

oh well bye.gif
shaniandras2787
post Nov 30 2023, 12:57 PM

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QUOTE(Lon3Rang3r00 @ Sep 21 2023, 11:04 AM)
Wonder what's the lifespan of an iPhone, I didn't really check how long have I been using my 12PM but felt very short. Just check the battery health now is 83% and I think it should last another 2 years or so.

This time round the 15 is really perfect in every aspect i want it to be (Except the cost but it's understandable) although the improve over my existing 12PM based on my daily needs really minimal so i'll let it pass. It's a nice experience coming from Android. I really love Apple's ecosystem and don't think i'll look into Android flagship phone.
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one generation of iPhone can technically last for 6 years (or even 8) if you are not keen on adopting new technologies. as long as Apple continue providing software updates to it, you are good.

i have been using my iPhone 12 Pro for 3 years now and the battery has been stuck at 84% since like about a year ago (and that is a good thing) because i remember i was struck with anxiety when it dropped from 100% to 88% within a year and somehow the percentage did not dwindle after an iOS update. even so, a full charge in the morning and medium-heavy usage throughout the day will still land me at 50% when I am back home in the evening so that is very very usable to me.

Apple products generally have a learning curve but once you are past that, it becomes very user friendly but i have got to say, iOS 17 really messed up that whole experience.
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