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Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
Just my opinion but I would not let them take my phone apart for 1%. I am not sure if they would.

Typically I wouldn’t care but I just think this is a defective battery . 27 or so days of ownership loss of 10+ mah . Using that info and taking it a year would mean I would lose around 500 mah which would be 20% before a year old. And around half by 2 years old.
 

Newtons Apple

Suspended
Mar 12, 2014
22,757
15,254
Jacksonville, Florida
Typically I wouldn’t care but I just think this is a defective battery . 27 or so days of ownership loss of 10+ mah . Using that info and taking it a year would mean I would lose around 500 mah which would be 20% before a year old. And around half by 2 years old.

I would still wait a few days and take another reading just to make sure the battery is going bad. Also I would question if Apple would replace for these numbers. Remember they use THEIR diagnostic software.
 

BigMcGuire

Cancelled
Jan 10, 2012
9,832
14,032
Typically I wouldn’t care but I just think this is a defective battery . 27 or so days of ownership loss of 10+ mah . Using that info and taking it a year would mean I would lose around 500 mah which would be 20% before a year old. And around half by 2 years old.

Then you can get a free battery replacement by Apple if so. I'd say use it as much as you can :).
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
Typically I wouldn’t care but I just think this is a defective battery . 27 or so days of ownership loss of 10+ mah . Using that info and taking it a year would mean I would lose around 500 mah which would be 20% before a year old. And around half by 2 years old.
That's assuming it's all just plain linear and that the estimated readings are accurate and don't fluctuate at times--all of which isn't really the case for the most part.

And there's always this:
Then you can get a free battery replacement by Apple if so. I'd say use it as much as you can :).
 
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Closingracer

macrumors 601
Jul 13, 2010
4,317
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That's assuming it's all just plain linear and that the estimated readings are accurate and don't fluctuate at times--all of which isn't really the case for the most part.

And there's always this:

Yes but to lose that much in a week let alone less then 30 days ? Yeah I’ve gotten to the point where I’m going to do as much as I can to burn the battery I guess to below 80% before the years up.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
Yes but to lose that much in a week let alone less then 30 days ? Yeah I’ve gotten to the point where I’m going to do as much as I can to burn the battery I guess to below 80% before the years up.
That's part of the point there is that you didn't necessarily lose that much. Keeping an eye on it over time is the way to go, and if it's really not doing well after some time (basically down the line later this year) then turning to Apple to get it addressed (essentially replaced) would be the next likely step.
 
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Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
That's part of the point there is that you didn't necessarily lose that much. Keeping an eye on it over time is the way to go, and if it's really not doing well after some time (basically down the line later this year) then turning to Apple to get it addressed (essentially replaced) would be the next likely step.

Losing 63mah in a week is quite a lot. That’s 756 in 12 months and 1,512 in 2 years. That’s over 50% loss in two years. That is the trajectory I’m seeing it as if I’m using my phone how much I am assuming the battery says at 99%. In reality the trajectory is probably worse then that and probably around 30-35% by the 2 years is up.



My first two weeks with the phone was fine. Just between last week and now it lost that much. And I’m assuming it’s 63 mah lost per month
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
Losing 63mah in a week is quite a lot. That’s 756 in 12 months and 1,512 in 2 years. That’s over 50% loss in two years. That is the trajectory I’m seeing it as if I’m using my phone how much I am assuming the battery says at 99%. In reality the trajectory is probably worse then that and probably around 30-35% by the 2 years is up.



My first two weeks with the phone was fine. Just between last week and now it lost that much. And I’m assuming it’s 63 mah lost per month
But again, as has been pointed out, the trajectory isn't linear typically, and the readings are estimates that can and do fluctuate. You seem to keep on discounting those aspects of it all.

Even that aside, whether or not it continues going down this way, once again, at the moment it's basically down to what has been mentioned before: keeping an eye on it over time is the way to go, and if it's really not doing well after some time (basically down the line later this year) then turning to Apple to get it addressed (essentially replaced) would be the next likely step.
 

Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
But again, as has been pointed out, the trajectory isn't linear typically, and the readings are estimates that can and do fluctuate. You seem to keep on discounting those aspects of it all.

Even that aside, whether or not it continues going down this way, once again, at the moment it's basically down to what has been mentioned before: keeping an eye on it over time is the way to go, and if it's really not doing well after some time (basically down the line later this year) then turning to Apple to get it addressed (essentially replaced) would be the next likely step.

I’m not discounting anything but taking data of what I have and just projecting is the easiest way to see it for what it is. A phone shouldn’t lose 1% if it’s charge less then 30 days of ownership.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
I’m not discounting anything but taking data of what I have and just projecting is the easiest way to see it for what it is. A phone shouldn’t lose 1% if it’s charge less then 30 days of ownership.
And that is where discounting of it all seems to be happening: projections that are simply based on linear extrapolation rather than what typically happens in reality where it's not linear, and conclusions about losses that don't account for the reality of estimates having some variability at times and typically having a tolerance.

But let's leave that aside, the ultimate part in it all is the approach that has been suggested a few times, mentioned in the previous reply and a few others. (Beyond that it's taking the phone to Apple right now to see what they would say about it, which likely wouldn't be much.)
 

tonybarnaby

macrumors 68020
Dec 3, 2017
2,385
1,741
Batteries are not all produced at 100%. Some of them come from the factory at 96-99%. That’s why it shows a “capacity loss” so quickly. Once the system levels out you will probably notice it stays at a certain number for a long while. You didn’t lose 1% in a month, your phone probably came at 99% and the battery health is just reflecting that.

Apple claims a phone should retain 80% capacity over 500 full cycles. If you use a cycle per day, your phone will be around 80% in about a year and a half, give or take. So the “average” iPhone will lose 1.3% capacity per month. If your phone is 6 months old and you’re at 92%, that’s normal. Somehow mine is still at 100%(December 2017) but yeah. I don’t even look at the health tab because my usage is still everything I need and more.
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,172
10,187
Well either way 97% or 99% with less then 30 days owning it it’s pretty bad. Guess I’ll have to burn it through fast before the years up
Batteries don't always start at 100%. They are made from chemicals and chemicals are not always precise. My MacBook came brand new with 96% battery health. After 200 cycles, its still at 96%.
[doublepost=1530157813][/doublepost]
Losing 63mah in a week is quite a lot. That’s 756 in 12 months and 1,512 in 2 years. That’s over 50% loss in two years. That is the trajectory I’m seeing it as if I’m using my phone how much I am assuming the battery says at 99%. In reality the trajectory is probably worse then that and probably around 30-35% by the 2 years is up.



My first two weeks with the phone was fine. Just between last week and now it lost that much. And I’m assuming it’s 63 mah lost per month
Batteries are not linear. End of story. Its that simple. You need to put the math aside and just use your device. There is nothing wrong with it.
 

Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
Batteries don't always start at 100%. They are made from chemicals and chemicals are not always precise. My MacBook came brand new with 96% battery health. After 200 cycles, its still at 96%.
[doublepost=1530157813][/doublepost]
Batteries are not linear. End of story. Its that simple. You need to put the math aside and just use your device. There is nothing wrong with it.

There is when I’m already at 99% in less then a month when it was over 100%
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,172
10,187
There is when I’m already at 99% in less then a month when it was over 100%
Nope, as mentioned by multiple people in this thread. 1) Batteries are not linear. 2) Batteries do not come at 100%. Just because Apple's diagnostics on day one said it was 100%, means nothing. Batteries can take a week to break in, and once the dust settles that is the health of the battery. 3) Unless the battery drops below 90% there is absolutely no way you will notice it. 4) If your battery is truly defective, there is literally nothing to worry about because it will fail within a year and Apple will replace it for free.

Just use your device and check on it in 10 months. Its that easy. You are worrying over nothing, and thats coming from someone with massive OCD when it comes to batteries.
 

Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
Nope, as mentioned by multiple people in this thread. 1) Batteries are not linear. 2) Batteries do not come at 100%. Just because Apple's diagnostics on day one said it was 100%, means nothing. Batteries can take a week to break in, and once the dust settles that is the health of the battery. 3) Unless the battery drops below 90% there is absolutely no way you will notice it. 4) If your battery is truly defective, there is literally nothing to worry about because it will fail within a year and Apple will replace it for free.

Just use your device and check on it in 10 months. Its that easy. You are worrying over nothing, and thats coming from someone with massive OCD when it comes to batteries.

Nope you can bet on it that’s it’s a lemon.
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,172
10,187
Nope you can bet on it that’s it’s a lemon.
If it was a defective battery, it would be substantially lower than 99% after 43 cycles. You can bet on that.

A battery is meant to retain 80% after 500 cycles. You are literally doing almost double that.

Stop being so obsessed about "less than a month". Batteries are measured on cycles not time. Your argument is extremely flawed.
 

Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
If it was a defective battery, it would be substantially lower than 99% after 43 cycles. You can bet on that.

A battery is meant to retain 80% after 500 cycles. You are literally doing almost double that.

Stop being so obsessed about "less than a month". Batteries are measured on cycles not time. Your argument is extremely flawed.

As I said you can bet on it
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,172
10,187
As I said you can bet on it
You are wrong, and you have absolutely zero evidence to back up your stance. I'm sorry but you are in denial to what everyone here is telling you. Its not defective and you need to get over it and move on. I would bet on it, thats how certain I am that you are wrong. Do some research on batteries and you will find exactly what I am saying.

I love how you can't even find a counter argument to my 500 at 80% statement. Because you know its true. And yet you still call it defective. What a joke.
 

akash.nu

macrumors G4
Original poster
May 26, 2016
10,870
16,998
Losing 63mah in a week is quite a lot. That’s 756 in 12 months and 1,512 in 2 years. That’s over 50% loss in two years. That is the trajectory I’m seeing it as if I’m using my phone how much I am assuming the battery says at 99%. In reality the trajectory is probably worse then that and probably around 30-35% by the 2 years is up.



My first two weeks with the phone was fine. Just between last week and now it lost that much. And I’m assuming it’s 63 mah lost per month

It doesn’t work in such linear fashion. I’d recommend you to just use the phone normally for a couple more weeks and monitor the battery, run coconut battery at 100% charge and note them down. By trying to harm the battery yourself you’re just trying too hard to create a situation which might not be necessary.
 
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tonybarnaby

macrumors 68020
Dec 3, 2017
2,385
1,741
I want to hear from someone at Apple about how much they hate the battery health tab. How many people come in and demand a new battery once they hit 95% or some arbitrary number?
 

Closingracer

macrumors 601
Jul 13, 2010
4,317
1,849
It doesn’t work in such linear fashion. I’d recommend you to just use the phone normally for a couple more weeks and monitor the battery, run coconut battery at 100% charge and note them down. By trying to harm the battery yourself you’re just trying too hard to create a situation which might not be necessary.

It does to an extent and either wait losing 1% in less then 30 days. I’ve lost around 6% on my Note 8 which I replaced 2 months ago which i bought on release. At this point I’m just going to run it into the ground and get it replaced before the years up
 

Shadowbech

macrumors G3
Oct 18, 2011
9,038
5,894
It does to an extent and either wait losing 1% in less then 30 days. I’ve lost around 6% on my Note 8 which I replaced 2 months ago which i bought on release. At this point I’m just going to run it into the ground and get it replaced before the years up
That's what I would recommend, take it to the Apple Store before the 1 year warranty expires and see if you can get the battery replaced then.
 
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