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DarkSorrow82

macrumors 6502
Original poster
Aug 26, 2016
333
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Minocqua, WI
What’s with this iPhone 11 Pro Max!! 4 months old and my battery capacity is at 98% WTF? I had my iPhone XS Max for 10 months and the capacity was still 100%.
 
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What’s with this iPhone 11 Pro Max!! 4 months old and my battery capacity is at 98% WTF? I had my iPhone XS Max for 10 months and the capacity was still 100%.

Sounds to me like your XS Max was displaying an incorrect health figure and your Pro Max is just fine.

There’s no way after 10 months of charging that your battery hadn’t degraded at all.
 
Sounds to me like your XS Max was displaying an incorrect health figure and your Pro Max is just fine.

There’s no way after 10 months of charging that your battery hadn’t degraded at all.

I’m Like Mark. Exactly the same. 100% for the XR and 98% for the pro max. Why would it be incorrect?
 
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What’s with this iPhone 11 Pro Max!! 4 months old and my battery capacity is at 98% WTF? I had my iPhone XS Max for 10 months and the capacity was still 100%.
Bro, don’t be mad. Let’s see my iPhone 11 Pro.
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People are too held up on this. Another win for Apple, get people to pay for more battery replacements because they're too worried about a virtual number. It's a way to get people to upgrade, give the battery a rating and making it difficult and more expensive the change it yourself. If your battery is still 100% after 10 months, must mean the battery will last at least 83years, in reality it won't.

I've had iPhone with 95% battery but the battery life is below average. That number don't mean everything.

Although I would like to know whether or not people who have their percentage drops quickly also use fast charge and get their battery below 25% more often.
 
There really needs to be a wiki entry on battery health. Then again, it's grist for the conversation and outrage mill and keeps the electrons flowing around here.

OP: Your battery is fine. If it starts dropping steadily and keeps dropping consistently for weeks on end, then you have a problem. If it fluctuates or if it suddenly drops 2%, but stays at its new estimate for a while, nothing's wrong.

Battery life is very hard to predict. If your previous batteries stayed healthy for a good long while, your current one should perform pretty close regardless of what the numbers say. It's only if you have a habit of killing batteries that you might want to pay more attention to the battery health.
 
There really needs to be a wiki entry on battery health. Then again, it's grist for the conversation and outrage mill and keeps the electrons flowing around here.

OP: Your battery is fine. If it starts dropping steadily and keeps dropping consistently for weeks on end, then you have a problem. If it fluctuates or if it suddenly drops 2%, but stays at its new estimate for a while, nothing's wrong.

Battery life is very hard to predict. If your previous batteries stayed healthy for a good long while, your current one should perform pretty close regardless of what the numbers say. It's only if you have a habit of killing batteries that you might want to pay more attention to the battery health.
Yea. I think my XS Max was already showing 99 or 98 from the get go, but then it didn't go down much over time after that. My Pro Max started at 100 and might still be 100. Was 100 about a week or so ago when I checked last.
 
For all the battery health enthusiasts, try comparing your Apple Battery Health numbers with those of CoconutBattery app for macOS. You may be surprised. FWIW, my two year old iPhone 7 was showing 88% battery health, while also displaying the message that battery needed replacing. The battery life was bad, however, and CoconutBattery gave me a reading that the battery was actually at 55% of its original capacity. So even charging it to a 100% would only give me several hours of use. I swapped the battery in the end, but it was an interesting learning experience.
 
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If we want to get nit picky, the battery starts degrading the second after it gets manufacturered and there's nothing that can stop it.
We can slooow the process down by observing recommended charging practices and usage tips, but usage and time will eventually kill it.

Theoretically- it's impossible for a new battery to stay at 100% capacity for more than a very short while after its manufactured (perhaps days). It's those who write the software at appl for the battery health app who are taking the liberty in deciding how degraded the battery shall get while still displaying a 100% capacity health reading.

Rest assured - 100% ain't really 100%
 
For all the battery health enthusiasts, try comparing your Apple Battery Health numbers with those of CoconutBattery app for macOS. You may be surprised. FWIW, my two year old iPhone 7 was showing 88% battery health, while also displaying the message that battery needed replacing. The battery life was bad, however, and CoconutBattery gave me a reading that the battery was actually at 55% of its original capacity. So even charging it to a 100% would only give me several hours of use. I swapped the battery in the end, but it was an interesting learning experience.

Unfortunately that CoconutBattery application doesn’t work on windows which is a shame.
 
Unfortunately that CoconutBattery application doesn’t work on windows which is a shame.

Try it on a friend’s Mac? That app is tiny in size and takes a blink to install. Not sure about Windows, but I guess there must be a worthy equivalent for it.
 
What’s with this iPhone 11 Pro Max!! 4 months old and my battery capacity is at 98% WTF? I had my iPhone XS Max for 10 months and the capacity was still 100%.

You are assuming the XS Max is accurate. In reality the 11 Pro Max is likely more accurate. If the XS Max is 100% after 10 months not only will it far exceed Apples 80% over 2 years but its on track to defy physics if we put all our faith into the battery health gauge.

Something else to consider is 100% health is Apples target capacity but batteries aren't identical. You could have gotten lucky and your XS Max was shipped with 100+mAh MORE than Apples spec. This would mean it was higher than 100% and its still working its way down to that point. That doesn't mean its "better". If it was at 110% when it was new that means it could have dropped 10% making it worse than the 11.

Also, and I'm not saying this is the case but often time an aftermarket battery will stay at 100% indefinitely due to its integrated hardware not being entirely compatible.
 
Take the battery percentages with a grain of salt, my 6S+ has been at 79% for 2 years straight without changing.
 
Yea. I think my XS Max was already showing 99 or 98 from the get go, but then it didn't go down much over time after that. My Pro Max started at 100 and might still be 100. Was 100 about a week or so ago when I checked last.
Checked a few days ago again and it was 99.
 
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