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donster28

macrumors 68000
Original poster
Oct 5, 2006
1,722
805
Great White North
I didn’t feel anything slowing down in my iPhone X but my battery certainly didn’t have the same capacity as before.

I was aware that I had 87% capacity on my 2 year old phone and don’t qualify for battery exchange under warranty. But upon checking my battery status on the phone, it warned me that my battery needs “service”.

Sure enough the battery was not normal according to the Genius who helped me out. I then got myself a free replacement.

Is this something uniqueIn IOS 13? Has anyone else experienced this?

UPDATE:
Just want to add that checking the phone under Coconut Battery said mine has 77%.

I now believe Apple’s estimates are quite off. Better double check yours too.
 
Last edited:

Mlrollin91

macrumors G5
Nov 20, 2008
14,120
10,106
Its possible you just had a defective battery that was failing the first time you took it in, but fully failed the second time (with the service warning). Apple's battery diagnostics use a two week "window" to look at the battery's health. If its just beginning to fail in the two week period they scanned, it will come back as normal. But once it actually fails, the phone itself will tell you, like it did here.
 

iApplereviews

Suspended
Jun 3, 2016
2,234
1,812
Virginis
I didn’t feel anything slowing down in my iPhone X but my battery certainly didn’t have the same capacity as before.

I was aware that I had 87% capacity on my 2 year old phone and don’t qualify for battery exchange under warranty. But upon checking my battery status on the phone, it warned me that my battery needs “service”.

Sure enough the battery was not normal according to the Genius who helped me out. I then got myself a free replacement.

Is this something uniqueIn IOS 13? Has anyone else experienced this?

Don’t think it’s new for iOS 13 i think it came out when battery health did
 

m0sher

macrumors 6502a
Mar 4, 2018
815
783
Just gave my X to my son and it’s 1 yr 6 months old and is at 87% battery capacity.

Still says running at peak performance.
 

acorntoy

macrumors 68000
May 25, 2010
1,998
2,212
Still waiting to see Geekbench results of a throttled X/8. Starting with A11 was when Apple started saying the throttling impact would be less severe when activated
 

iApplereviews

Suspended
Jun 3, 2016
2,234
1,812
Virginis
Still waiting to see Geekbench results of a throttled X/8. Starting with A11 was when Apple started saying the throttling impact would be less severe when activated

That’s not a valid test. Geekbench results already vary phone to phone there’s no way to tell exactly what is causing the difference even it it was throttling.
 

jpn

Cancelled
Feb 9, 2003
1,854
1,988
I find it odd I'm the 3rd person now posting on here mine. says 87% also

i have posted last year on this issue of Battery Health reporting a % just above the line indicating poor battery health.
it happens with all models, not just an iPhone X.
i had (still have) an iPhone 6s, that showed 87% for years.
and when it began to fail it still showed 87%.
currently it shows 84% and only gives around 5+ hours of usage per day.
the % figure accessible to users is meaningless, and is a data point very "managed" by apple.
it really indicates nothing, by itself.
 

TWD98j

macrumors 6502
Sep 14, 2010
264
49
My X was at 85% max capacity and supposedly running at peak performance despite the battery % dropping from 86% to 59% in the span of about 80 minutes last week under normal use.

As much as I wanted to hang onto it for another year, I realized it was not going to hold up as a daily driver for that long, not even close. So I traded it in toward a 11 Pro Max.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,390
19,458
i have posted last year on this issue of Battery Health reporting a % just above the line indicating poor battery health.
it happens with all models, not just an iPhone X.
i had (still have) an iPhone 6s, that showed 87% for years.
and when it began to fail it still showed 87%.
currently it shows 84% and only gives around 5+ hours of usage per day.
the % figure accessible to users is meaningless, and is a data point very "managed" by apple.
it really indicates nothing, by itself.
My X was at 85% max capacity and supposedly running at peak performance despite the battery % dropping from 86% to 59% in the span of about 80 minutes last week under normal use.

As much as I wanted to hang onto it for another year, I realized it was not going to hold up as a daily driver for that long, not even close. So I traded it in toward a 11 Pro Max.

There are a few things in play in all of that. The maximum capacity is an estimate and the typical lifetime is basically in the range of 100% - 80%, so being down to 84% puts the battery pretty close to being bad.

Aside from that there are other aspects to chemical aging of a battery, so a battery that has over 80% maximum capacity remaining can still run into some issues and those could show up as indicators of a failing battery.
 

donster28

macrumors 68000
Original poster
Oct 5, 2006
1,722
805
Great White North
Just want to add that checking the phone under Coconut Battery said mine has 77%.

I now believe Apple’s estimates are quite off. Better double check yours too.
 

movieator

macrumors 65816
Sep 17, 2009
1,393
1,046
LA, CA
Just want to add that checking the phone under Coconut Battery said mine has 77%.

I now believe Apple’s estimates are quite off. Better double check yours too.
For the record, Coconut Battery is not 100% reliable on the money either. And I say that as a user of it.
 

stephenschimpf

macrumors regular
Jun 15, 2018
171
247
San Pedro, CA
Battery Health for my nearly two-year old iPhone X shows 93%. It still works great, but after comparing low-light photos taken with my phone with my girlfriend's new 11 Pro Max, I'll be upgrading to and 11 Pro soon!
 
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rich32gb5s

macrumors 6502
Oct 16, 2013
267
41
Berkshire
From my experience 85% is around the time to change the battery. I have a X but my experience was with an iPhone 7 and it was crashing and not holding charge well. Checked health at 85% and decided to change the battery out. The phone was like a new upgrade after the new battery was installed. Brighter screen and better performance all round.
 

TokMok3

macrumors 6502a
Aug 22, 2015
672
422
I didn’t feel anything slowing down in my iPhone X but my battery certainly didn’t have the same capacity as before.

I was aware that I had 87% capacity on my 2 year old phone and don’t qualify for battery exchange under warranty. But upon checking my battery status on the phone, it warned me that my battery needs “service”.

Sure enough the battery was not normal according to the Genius who helped me out. I then got myself a free replacement.

Is this something uniqueIn IOS 13? Has anyone else experienced this?

UPDATE:
Just want to add that checking the phone under Coconut Battery said mine has 77%.

I now believe Apple’s estimates are quite off. Better double check yours too.


My X after 20 months shows 90% of Maximus capacity.
 

FlippyGonnaSnap

macrumors regular
Oct 23, 2019
191
117
The only way you’ll get a truly accurate reading of your battery health is by plugging it in directly to specialist hardware.

The diagnostics which relies on the sensors of the device itself can be a bit all over the place.
 

Five_Oh

macrumors 6502
Jan 7, 2017
396
311
Flyover Country, USA
Just want to add that checking the phone under Coconut Battery said mine has 77%.

I now believe Apple’s estimates are quite off. Better double check yours too.

86% in iOS and through Coconut. Battery is clearly...aging. I can definitely tell a difference from new as far as battery life during the day, but it runs as well as when new.

I have spot checked periodically using Coconut (more out of curiosity than anything) and it has always been spot on what was reported by the OS. I guess I don't know what it really reads, but I assumed it would be the same data as reported through settings. Why would it be different?

Oh well, I know my case is anecdotal only and everyone else might have a different experience.
 

Sam in SoCal

macrumors 6502a
Oct 13, 2019
762
1,031
86% in iOS and through Coconut. Battery is clearly...aging. I can definitely tell a difference from new as far as battery life during the day, but it runs as well as when new.

I have spot checked periodically using Coconut (more out of curiosity than anything) and it has always been spot on what was reported by the OS. I guess I don't know what it really reads, but I assumed it would be the same data as reported through settings. Why would it be different?

Oh well, I know my case is anecdotal only and everyone else might have a different experience.
Is coconut only available downloading from computers and Macs? I can’t find it on iPhone and iPad
 
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