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With my XS after 2 years I had 88% and because of AC+ replaced it for a new one. But didn’t have any issues with battery life. After last 3 months uf using 12 mini I do have still 100%. It vary. 🙂
 
I have a launch day iPhone 12 PM and its battery health is still at 100%.

I always use a 5W wireless charger and charge overnight, that’s why the battery health is still at maximum after four months of heavy use.

Nope, that's not the reason.
I have your same behaviours and my dropped 1% in 6 weeks.

Mt wife' 12P is older than mine and still at 100% wihout any practice of battery "caring".
 
Just remember, these phones come from the factory with all sorts of capacities. Some 104%, some 96%, some 108%. My 12 Pro Max is still 105% and my wife's phone is 104% from designed capacity. Someone who gets <100% design capacity from factory will see that % drop faster than those who don't. It's important to know where the phone started in order to understand it better. Apps like coconutBattery help in this respect.

I've manually been following the 40-80% rule and I'm seeing my phone drop a LOT slower on health this year than any other year before that I've monitored (and I've been monitoring since the 6+).

1616076411471.png
 
Just remember, these phones come from the factory with all sorts of capacities. Some 104%, some 96%, some 108%. My 12 Pro Max is still 105% and my wife's phone is 104% from designed capacity. Someone who gets <100% design capacity from factory will see that % drop faster than those who don't. It's important to know where the phone started in order to understand it better. Apps like coconutBattery help in this respect.

I've manually been following the 40-80% rule and I'm seeing my phone drop a LOT slower on health this year than any other year before that I've monitored (and I've been monitoring since the 6+).

View attachment 1745465
is that screenshot from coconut battery plus?
 
is that screenshot from coconut battery plus?
Yeah, as soon as Chris came out with a pro version I jumped on it. I haven't used the non-pro version since forever so not really 100% sure what are pro/non-pro features. I love the history viewer - all my devices (and my wife's devices). lol. No more needing to keep track of this stuff in excel spreadsheets (yeah, I did... for years).
 
Yeah, as soon as Chris came out with a pro version I jumped on it. I haven't used the non-pro version since forever so not really 100% sure what are pro/non-pro features. I love the history viewer - all my devices (and my wife's devices). lol. No more needing to keep track of this stuff in excel spreadsheets (yeah, I did... for years).
really interesting!

The history viewer pops out automatically or it just keeo track every time you plug the phone?
 
really interesting!

The history viewer pops out automatically or it just keeo track every time you plug the phone?
The Pro version? I guess? has a constant wifi connection to my phone so I can read it all the time just by having my phone next to my MBP. It's been so nice. I used to have to manually do this via Excel and plugging in my phone. lol.

1616079121177.png


I am a huge fan of coconutBattery - no paid affiliation at all. Just an app I really like.
 
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The Pro version? I guess? has a constant wifi connection to my phone so I can read it all the time just by having my phone next to my MBP. It's been so nice. I used to have to manually do this via Excel and plugging in my phone. lol.

View attachment 1745485

I am a huge fan of coconutBattery - no paid affiliation at all. Just an app I really like.

it's not really accurate..
check mu design capacity and my full charge capacity

1616079313466.png
 
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it's not really accurate..
check mu design capacity and my full charge capacity

View attachment 1745492
Note the design capacity difference between your pic and mine despite us having the same phones - yeah I use it as more of a guide not necessarily the law. Supposedly it's reading Apple's own sensor data so <shrug>. lol.
 
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1616081241275.png


This is my history.

The design capacity y factory is 3678mAh.

I think the tool is just an estimation, based on .. who knows.

Just a nice tool to keep track on the battery fluctuation, nothing more.
 
View attachment 1745508

This is my history.

The design capacity y factory is 3678mAh.

I think the tool is just an estimation, based on .. who knows.

Just a nice tool to keep track on the battery fluctuation, nothing more.
Just my experience - but I'm no expert at all:

1616082329392.png



From what I can tell it just runs off of Mac's sensors. iMazing had similar numbers too. <shrug>.

But yeah, I wish coconutBattery had a help article explaining exactly what they pull from but I guess that'd make copying it easier? lol.

Terminal command used: system_profiler SPPowerDataType | grep -A3 -B7 "Condition"
 
Just my experience - but I'm no expert at all:

View attachment 1745517


From what I can tell it just runs off of Mac's sensors. iMazing had similar numbers too. <shrug>.

But yeah, I wish coconutBattery had a help article explaining exactly what they pull from but I guess that'd make copying it easier? lol.

Terminal command used: system_profiler SPPowerDataType | grep -A3 -B7 "Condition"

really interesting.
Can you post here the terminal command to check thr battery stats?
Is there a terminal command for the iOS device?
 
thank you very much!!
I am no expert so I definitely agree with your conclusion that these are just "nice guides" and not necessarily the law when it comes to stuff. I mean, even battery chemical reactions aren't an exact science either when it comes to reporting health, etc.

Of all the Apple devices I've ever had, we've only had to get 1 serviced by Apple because it flashed "Service Now" after almost 3 years of usage. Apple replaced it on the spot with no fuss despite it only having a few months of AC+ left (MacBook Pro 3 year AppleCare+). But coconutBattery was able to see that battery taking a dive after 2 years and showed 70% capacity for most of its last year of life. Of course, I never mentioned coconutBattery to Apple. The "Service Now" warning in Mac OS was enough lol.
 
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Guys, I found this way to have an accurate measure of the battery capacity.
@BigMcGuire check this out ;)

  1. Open the Settings app on your iPhone.
  2. Go to Privacy>Analytics & Improements>Analytics Data.
  3. Go through the list of various log files saved here and find the “log-aggregated” file. The file name will be accompanied by a date. Find the file with the most recent date, and open it.
  4. You now need to search this file. Tap the share button at the top and send the file to yourself.
Once youhave the file transfered to your mac, search for the line
com.apple.ioreport.BatteryNominalChargeCountCapacity

Compare the number with the max capacity of your battery (simply check online what your iphone model battery capacity in mAh).

@BigMcGuire check this out
 
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Guys, I found this way to have an accurate measure of the battery capacity.
@BigMcGuire check this out ;)

  1. Open the Settings app on your iPhone.
  2. Go to Privacy>Analytics & Improements>Analytics Data.
  3. Go through the list of various log files saved here and find the “log-aggregated” file. The file name will be accompanied by a date. Find the file with the most recent date, and open it.
  4. You now need to search this file. Tap the share button at the top and send the file to yourself.
Once youhave the file transfered to your mac, search for the line
com.apple.ioreport.BatteryNominalChargeCountCapacity

Compare the number with the max capacity of your battery (simply check online what your iphone model battery capacity in mAh).

@BigMcGuire check this out
Just woke up - I took a screenshot of your post - will check this out. Nice find!!! Very cool :).
 
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I've had my X for 2 years and over 300 charge cycles and still at 100%

Accurate? Who knows but as a light user, it's still a 2 day phone for me if I was to use it that way. My phone never drops below 50% and is rarely charged to 100%
Screen Shot 2021-03-21 at 9.19.36 AM.png
 
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I like to run mine down to 0% then fully charge in the evening, I’m not a not a heavy user so that’s every 3 days approx 😁👍
It is not good to run the battery down to 0% much less 10% on a regular basis, as that action lessens that longevity of the battery. That means you will probably have to get your battery replaced sooner than you may have expected.
 
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Guys, I found this way to have an accurate measure of the battery capacity.
@BigMcGuire check this out ;)

  1. Open the Settings app on your iPhone.
  2. Go to Privacy>Analytics & Improements>Analytics Data.
  3. Go through the list of various log files saved here and find the “log-aggregated” file. The file name will be accompanied by a date. Find the file with the most recent date, and open it.
  4. You now need to search this file. Tap the share button at the top and send the file to yourself.
Once youhave the file transfered to your mac, search for the line
com.apple.ioreport.BatteryNominalChargeCountCapacity

Compare the number with the max capacity of your battery (simply check online what your iphone model battery capacity in mAh).

@BigMcGuire check this out
iOS as well as MacOS rounds up the battery charge and battery health status.

My 12 mini battery health is actually 99.5 and Apple rounds up and shows 100%. Not a big deal to me that Apple rounds up. After all, its all estimates that change daily based on an every changing chemical reaction contained in what we call the battery.

I think some people on the forum are getting way too obsessed with the battery status and other stats of the phone, instead of actually using and enjoying the phone.
 
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Guys, I found this way to have an accurate measure of the battery capacity.
@BigMcGuire check this out ;)

  1. Open the Settings app on your iPhone.
  2. Go to Privacy>Analytics & Improements>Analytics Data.
  3. Go through the list of various log files saved here and find the “log-aggregated” file. The file name will be accompanied by a date. Find the file with the most recent date, and open it.
  4. You now need to search this file. Tap the share button at the top and send the file to yourself.
Once youhave the file transfered to your mac, search for the line
com.apple.ioreport.BatteryNominalChargeCountCapacity

Compare the number with the max capacity of your battery (simply check online what your iphone model battery capacity in mAh).

@BigMcGuire check this out
Wow that file has a ton of battery data in it.
 
It's mentioned here, wish IOS would remove that % feature. Especially for some of us that (ugh) always read it.

The "Health" drain of my 12 PM is not even closely resembling my 2+ year old XSMax. I traded that in with a 94% Health. Approaching just 4 months with the 12PM, it's now at 97%, it's not "normal"

After a unexplainable 100% battery drain in 6 hours overnight - off the charger a few weeks ago. I took it to Apple.. Long story short, everything "appeared to be ok" & "If the battery drain continues, they will replace it." So that just sets my mind at ease.

So, yeah... seeing this % dropping faster than usual is deflating....I'm also kinda tired of worrying about it.
 
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I could never like the optimized battery charging, i almost never have a set wake up time, it’s always random, i like to have a full charge when i take it off the charger...
 
The
Hi guys, thanks you all for the answer.

I know it's not really a problem, but a really picky guy (damn), so this thing is bothering me, especialluy because the most of the device (12/12P/12PM) are still at 100% even when older than mine.

I checked via coconut and yes, it's around 98.9.
Calibration of batteries in factory are not 100% Accurate
If you see the battery dropping 1% a month or so then it’s worth going to Apple to document it
However the iPhone usually good for around 3 years before battery replacement is necessary
 
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