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Iphone x battery max capacity

Hi just installed ios11.3

I checked the mac capacity of my battery,since the iphone x is only two months old i expected a 100/100.


I saw 99 instead...is this normal?i think itis too early for the battery to start loosing its capacity

Posted on Mar 29, 2018 11:14 PM

Reply
49 replies

Jun 27, 2018 10:16 PM in response to yasamanfrommiami

Hi,

I did it by taking contact with Apple using Apple support app as i am located in Belgium

I do not know how you can make it from iran but try this link

https://www.apple.com/contact/

Also try ro download apple support app and take contact with them sure there’s a particularly shop in your country who works with Apple

Hope this is enough info

Mar 30, 2018 3:59 AM in response to kfromg

Battery readouts can be confusing with phones. Anything between 95% and 100% are considered normal. You could for example, charge a phone to 100%, take it off the charger and find it reads a lower figure. That could be because of the background apps like mail and location begin to absorb power immediately, as too could be the brightness setting.

Apr 4, 2018 10:55 AM in response to subhajit0303

I wouldn't worry about it. There are several possibilities. Manufacturing variations may affect capacity. Some manufacturers provide a minimum vs typical capacity for a new battery. Sometimes it might even come up at more than 100%. There are other reasons why there might be less than 100% new. Also - it's really just an estimate. Some users report that the battery health can go up.


I also wouldn't worry about using the iPad power adapter. I use a 12W iPad power adapter myself as well as a Mac notebook computer. Those all charge at the maximum 2100 mA. Yours should be able to provide 2000 mA. It certainly charges faster - at least until the charging circuits reduce the charging rate. It might result in a little bit more heat (which degrades the battery faster) being generated compared to using a 5W power adapter. However, that's a tradeoff for convenience. It's up to you if the convenience is more important than a tiny loss of capacity.


In the end it's easy enough to just get a battery replacement service. Some users try to get their batteries to last the life of the device. Others just replace the battery.

Apr 4, 2018 11:25 AM in response to kfromg

Hi,


In iOS 11.3 Apple introduce a new feature "Battery Health" that measure the battery capacity relative to when it was new. If you are running iOS 11.3 or later then go to Settings > Battery > Battery Health.


See the following link https://www.trickyways.com/2018/02/check-iphone-battery-health-capacity/ to know more about how to check iPhone battery health and what is the total battery capacity of all the iPhone and iPad models.

Apr 19, 2018 5:09 AM in response to kfromg

With many people’s normal usage a typical smart phone or tablet battery may well lose up to 1% capacity per month. That’s not necessarily excessive at all. Most such batteries, used daily, will only last (in terms of expected average lifespan of ~80% capacity after 500 full discharge/charge cycles) 2 to 3 years, at which point they will typically retain less than ~80% of original capacity.


Also note that the software readout is an approximation - it’s impossible to precisely determine capacity at any given time so if you insist on monitoring it frequently you’re inherently going to get fluctuating results (they will vary by temperature and humidity, recent power draw or charging, etc).


Heavier usage, and thus more frequent full cycle equivalents over time, will degrade them even faster. Note too that lithium batteries degrade whether used or not - even if never used, their useful lifespan is finite as capacity will decline as the battery auto-oxidizes internally and the electrolyte degrades.

Apr 22, 2018 9:48 AM in response to kfromg

Hello,

I have the same issue, I think it's related to the iOS 11.3 as before all was ok even the external apps on apple store was show 100% but since I set the iOS 11.3

I have this issue

also I reset my phone the battery comes up to 100 % for 3 days

and when my phone restart it becomes again to 99 %

there is something wrong with the IOS

however I check my phone on the MacBook console and the battery health was 100 % with 132 full cycle

I think no need to worry

and wait for IOS 11.4

to find out if all will become good again or not

forget to tell I contact apple store in Brussels and apple support no one know anything about this

all says it's normal and if you want to change the battery we can do it for free

May 18, 2018 11:38 PM in response to kfromg

Sounds pretty normal to me. There are a lot of little variables. One of them is that there might be a standard deviation for original capacity due to manufacturing variations.


Apple rates the battery at 500 complete charge-discharge cycles before a typical reduction in battery health to 80%. So if it's an average 250 cycles per year, a linear degradation would be expected to mean a reduction to 90% in one year. 99% doesn't sound like there's a problem.


Also - it's important to understand that the battery health number is just an estimate.

Aug 11, 2018 12:49 PM in response to kfromg

I have this issue as well. I have iOS 11.4.1. I did not even have my iPhone X for 2 months (about a month and a half) and today it is showing 99% max capacity.


I understand the comments about battery life span... But it just seems a bit soon IMO for the battery to show signs of decline after only 45 days. I would think maybe after 4-5 months it would be normal, but not less than 2.


On average I usually only need to charge once at night. I can go a full day without having to charge so I don't think I'm an extensive user.

Aug 11, 2018 2:48 PM in response to AutoSketcher

A lithium battery begins to loose capacity the moment it is assembled at the factory. It will continue to steadily lose capacity throughout its useful lifespan, and whether used or not - the decline is an inherent chemical degradation process and cannot be stopped, paused nor reversed.


So from the day you bought your lithium powered device (be it an iPhone, a laptop, an electric toothbrush or whatever) the battery has been steadily losing capacity since the day it was made, and will never truly be at 100% ever again.


And as mentioned several times in this and other threads, the level shown is an estimation - it is not exact, nor even all that precise. There is no algorithm based on measures current, voltage and resistance that can precisely determine any battery’s true electrical charge capacity. The estimated capacity will also fluctuate over time as loads on the battery vary.

Iphone x battery max capacity

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