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shanson27

macrumors 68020
Original poster
Nov 27, 2011
2,198
20,630
I have 96 % battery health on my iPhone 11 Pro after 1,2 months of use ?
IMG_91856D649447-1.jpeg
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BuggyGT

macrumors regular
Oct 1, 2019
165
148
Just curious how many times a day do you charge? On my XS Max I use to charge twice a day and my battery health was 91% after 1 year.
 

BugeyeSTI

macrumors 604
Aug 19, 2017
6,852
8,706
Arizona/Illinois
Battery capacity readings are inaccurate and change all the time. There are tons of threads already on the subject and it really doesn’t matter because Apple will tell you to pound sand until it reaches 80% unless you want to pay for a replacement yourself.
 
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tonybarnaby

macrumors 68020
Dec 3, 2017
2,385
1,741
Coconut says ~98 and Apple says 96. Not all batteries come with 100%. It's like filling a cup with water. Some hold more and some lose a small amount when they are produced, and then level out. Yours could very easily have leveled out now and will stay at the same indicated % for months. If it keeps dropping then maybe you have a bad battery, but I doubt it.
 

JanDdd

macrumors newbie
Nov 16, 2014
22
20
Battery health is an approximation!!! There's nothing than can be measured precisely, to indicate "battery health".

Do not worry. Avoid to have 0% charge, that will keep your battery healthy...
 

oVerboost

macrumors 68000
Sep 17, 2013
1,565
1,039
United Kingdom
Still at 100% with my launch day iPhone Pro, and my XR after a year of usage was also still showing 100%.

The increased battery life should in theory aid battery longevity as people will need to be charging the device less.
 

Aydy

macrumors 6502a
Nov 22, 2015
627
452
My Xs max is still showing 100% after 4.5 months. Not sure these results can be trusted tbh. Of course, usage patterns differ for everyone and mmv from one device to another.
 

KiraYamato

macrumors regular
Oct 27, 2015
193
114
I suspect these readings are bs. My iphone 6s plus basically has 45 minutes on screen time battery life left under heavy use. Its health is at 80 pct and has stayed there for a year (when things were much better). It should really be at 30 pct now.

These readings are like the iphone battery life percentage readings: for example, you notice when you take your iphone off the charge it stays abnormally long at the percentage you charged to and then drops normally after?
Or sometimes when three percent gets taken off really quick but then it it takes 15 minutes of the same type of usage for the battery to drop a percentage point?

I compare them to that behavior.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,458
I suspect these readings are bs. My iphone 6s plus basically has 45 minutes on screen time battery life left under heavy use. Its health is at 80 pct and has stayed there for a year (when things were much better). It should really be at 30 pct now.

These readings are like the iphone battery life percentage readings: for example, you notice when you take your iphone off the charge it stays abnormally long at the percentage you charged to and then drops normally after?
Or sometimes when three percent gets taken off really quick but then it it takes 15 minutes of the same type of usage for the battery to drop a percentage point?

I compare them to that behavior.
80% is more or less already the effective minimum for lithium ion batteries, so it's not likely it would drop to anything like 30%.

All these numbers are basically estimates based on various readings and other factors.
[automerge]1573773227[/automerge]
Battery health is an approximation!!! There's nothing than can be measured precisely, to indicate "battery health".

Do not worry. Avoid to have 0% charge, that will keep your battery healthy...
Realistically speaking getting down to 0% doesn't actually get down to a completely empty battery (which is what's actually damaging), so while it's not optimal to get down to 0% and probably better to avoid it when reasonable, it's likely not that bad overall.
 

KiraYamato

macrumors regular
Oct 27, 2015
193
114
80% is more or less already the effective minimum for lithium ion batteries, so it's not likely it would drop to anything like 30%.

All these numbers are basically estimates based on various readings and other factors.
Nope, have 72% on my wife’s iphone 6s plus. Anyway, when mine hit 80 pct it was still getting approx 3 hrs of sot. Nowadays it gets 45 mins without me updating firmware or installing anything sensational. But the reading is still at 80 pct.

So yeah, not a very accurate reading.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,458
Nope, have 72% on my wife’s iphone 6s plus. Anyway, when mine hit 80 pct it was still getting approx 3 hrs of sot. Nowadays it gets 45 mins without me updating firmware or installing anything sensational. But the reading is still at 80 pct.

So yeah, not a very accurate reading.
It can definitely drop below 80%, just not likely it would get to something like 30% as the battery would likely be pretty much non functional at all at a point like that.

And there are definitely more factors than simply battery capacity (as that is basically what battery health represents) that factor into battery performance too.
 

JPack

macrumors G5
Mar 27, 2017
12,556
23,271
Nope, have 72% on my wife’s iphone 6s plus. Anyway, when mine hit 80 pct it was still getting approx 3 hrs of sot. Nowadays it gets 45 mins without me updating firmware or installing anything sensational. But the reading is still at 80 pct.

So yeah, not a very accurate reading.

80% is already dead and overdue for replacement. The lower the capacity, the less reliable the measurement.
 

aakshey

macrumors 68030
Jun 13, 2016
2,800
1,292
Try to get the battery replaced. Does it last as long as it should right now?
 

rich32gb5s

macrumors 6502
Oct 16, 2013
267
41
Berkshire
With the amount of iphones manufactured , you are going to get cracks from time to time. Its just a less well made battery than the average. Maybe a bad cell. Its common with all batteries, not just Apple.
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80% is already dead and overdue for replacement. The lower the capacity, the less reliable the measurement.
My Iphone 7 was transformed after changing at 85%
 

Freakonomics101

macrumors 68030
Nov 6, 2014
2,739
1,798
2 days after launch iPhone 11 Pro at 100%. September 22, 2019.

Apple will not do anything about it as long as it’s above 80%.
 
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Shadowbech

macrumors G3
Oct 18, 2011
9,038
5,894
Launch Day Pro Max here. Still at 100%. Battery Health, coconut battery is telling me 19 charge cycles as of today.
 

IamScotty

macrumors regular
Sep 18, 2018
205
90
Charging to 100% is reason why battery is dying so fast. Max charging to 80% is ideal. iOS 13 has a feature when it will keep the battery at 80% until the phone determines, based on your charging pattern, to charge to 100% just prior to you being active on the phone. If you keep battery between 40-80%, you will extend life significantly, some go for the 30% to 90% mark. Don't let it drop below 20% either, both extremes are very bad for lithium batteries.
 

shanson27

macrumors 68020
Original poster
Nov 27, 2011
2,198
20,630
I do not play games, I do not shot videos, I do not hear music, I do not watch videos, Facebook is not installed, I‘m not using the phone during the charge
Did you notice any specific behavior from you iPhone? Like the iPhone been warm or heating?

No, only when charging the phone
 

EM2013

macrumors 68020
Sep 2, 2013
2,480
2,309
Charging to 100% is reason why battery is dying so fast. Max charging to 80% is ideal. iOS 13 has a feature when it will keep the battery at 80% until the phone determines, based on your charging pattern, to charge to 100% just prior to you being active on the phone. If you keep battery between 40-80%, you will extend life significantly, some go for the 30% to 90% mark. Don't let it drop below 20% either, both extremes are very bad for lithium batteries.
You can baby your battery like this & it’ll still drop like any other battery. I charge mines overnight & gone below 20% plenty of times it’s at 95% after a year.

Babying the battery will not make a difference.
 
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