iPhone XS battery health - 98%?

MCFS

macrumors newbie
Original poster
Aug 31, 2018
19
6
Why is my iPhone XS from release day already down 2% of it’s battery health? My iPhone X was 99% after 1 year and a few months.

Reason to worry?

Thanks in advance.
 

random155

macrumors newbie
Oct 13, 2018
2
0
I would say yes... thats a concern. Its only been out for a few weeks and you lost 2% of your battery.
 

chabig

macrumors 604
Sep 6, 2002
6,725
3,935
You have no reason to be concerned. Forget about it and just get to using your phone. If I gave you a can of beer and it was 98% full, you'd never even notice. First, that number isn't significant in a stand-alone way. It's only useful as a trend indicator over time. Second, batteries don't age linearly. Just because you see 98% now doesn't mean you'll mean see 96% in two weeks, 94% in four weeks, etc. Go to Apple if you want to but it'll be wasted trip.
 

John webstar44

Suspended
May 9, 2018
139
63
Nothing to worry lol my iPhone X Went down to 95% after couple of charges back to 97% now.
brand new iPhone XS Max 99% second cycle back to 100%
 

AxlTJ

macrumors regular
Aug 3, 2018
101
19
It's nothing to worry about. Batteries need a certain number of charge cycles before it reaches its maximum capacity. I personally don't trust that rating, it's not absolute.
 

Minho

macrumors regular
Oct 4, 2017
193
45
Montreal, Canada
For now, I wouldn't worry about this. I would keep track of the progress though to see if this is a trend or not. If it keeps dropping over a short period of time, then you could always drop by the Apple Store. However, they only warranty the battery when it gets below 80% in the first year. As others have said, the battery will not deplete linearly so you have to give it more time to see what the trend is.
 

Minorite

macrumors 6502
May 8, 2018
490
114
Poland
I wouldn't panic about 1-2%, it's chemistry and battery life may vary by these 1-2% depending on several factors. Get Coconut or iMazing to check actual battery health and charge cycles. If it will drop by 1% every 10-15 cycles - it's a faulty battery and you need to replace it.

And always check battery health at 100% charge.
 

NBAasDOGG

macrumors 6502
May 27, 2017
452
829
Netherlands
I wouldn't panic about 1-2%, it's chemistry and battery life may vary by these 1-2% depending on several factors. Get Coconut or iMazing to check actual battery health and charge cycles. If it will drop by 1% every 10-15 cycles - it's a faulty battery and you need to replace it.

And always check battery health at 100% charge.
I’m 99% with 19 cycles :(
 
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Banglazed

macrumors 68040
Apr 17, 2017
3,351
3,537
Cupertino, CA
I would say there is no reason to be concerned. This is probably due to your charging behavior and usage on the device. However, my device is showing 105% of designed capacity somehow lol Use your device as normal, keep the heat down and keep the charge on device between 15-85% to minimize the stress on the battery being too low or too high.
 

NBAasDOGG

macrumors 6502
May 27, 2017
452
829
Netherlands
7 cycles and battery capacity at 97.2%? is this for real? WTF...
I also have this problem and contacted Apple about it.
They told me to send it for repair, which is horrible.
I accepted the offer, but I think it’s unacceptable to replace the battery of a 25-day old phone. I do expect them to send a replacement unit.
 

Kidder1994

macrumors regular
May 20, 2012
193
25
I also have this problem and contacted Apple about it.
They told me to send it for repair, which is horrible.
I accepted the offer, but I think it’s unacceptable to replace the battery of a 25-day old phone. I do expect them to send a replacement unit.
We don't have apple stores here in my country, only premium resellers, so to make them understand my battery have issues is a mess, and sending it under warranty means like a month without phone... but i never had a battery issue like this, my iPhone 8 was used for 11 months and have 91% of battery capacity, i don't know what to do... maybe just deal with it... unless it goes even lower :/
 

derbaron

macrumors newbie
Mar 21, 2017
21
49
My iPhone X was down to 92 % battery health after less than one year. Normal usage, no gaming or other hard tasks. No heat or freezing temperatures. Charging over night as usual. I haven't had any problems making it through the day and wouldn't consider 98-99 % a problem, even on a new phone.
 

rdillon2008

macrumors 6502
Aug 23, 2018
264
80
Bahamas
THAT DEPENDS ON HOW MANY TIMES A DAY YOU CHARGE YOUR PHONE AND IF YOU LET YOUR PHONE GO WAY DOWN TO ZERO AND CHARGE AGAIN
 

Kidder1994

macrumors regular
May 20, 2012
193
25
Actually im talking to apple through support chat, they say it's not normal to decrease so fast in less than 15 days so they will make a report if it persists, to send it through warranty :'(
 

Phil77354

macrumors 6502
Jun 22, 2014
334
198
Eastern Washington State
Reading this thread led me to check my own and mi wife's iPhone Xs Max phones and both of them are 100% - whew!

I'm curious - those who are mentioning how many cycles their batteries have - how do you know this?
 

Banglazed

macrumors 68040
Apr 17, 2017
3,351
3,537
Cupertino, CA
Reading this thread led me to check my own and mi wife's iPhone Xs Max phones and both of them are 100% - whew!

I'm curious - those who are mentioning how many cycles their batteries have - how do you know this?
Use Coconut Battery, iMazing or some iTunes alternative that can provide battery stats from iTunes backup.
 

Kidder1994

macrumors regular
May 20, 2012
193
25
7 cycles and battery capacity at 97.2%? is this for real? WTF...
Just a weird update, using coconutBattery at that time it showed 97.2% of total battery capacity... today i tried it again and the battery capacity now is 99.2%... it's normal that coconutBattery give that sudden change? it should be lower not higher xD it's weird but anyway i'm kinda relieved

PD: Battery capacity on iPhone still shows 98%
 
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