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Jacoblee23

macrumors 65816
Original poster
Nov 10, 2011
1,482
736
I just got it a couple of days ago and I have noticed while looking at coconut battery the full charge capacity keeps dropping rapidly, but the design capacity is still 100%. The full charge capacity is already down to 93% and my MacBook is showing 99% battery because it hasn't even been off of the charger for very long. Is my MacBook defective or do I need to give it some time to figure itself out? Thanks in advance.
 

Apple_Robert

Contributor
Sep 21, 2012
35,665
52,468
In a van down by the river
There is nothing wrong with your new M1. You will drive yourself crazy constantly checking Coconut Battery.

Your battery is an ever changing chemical process. Battery health is an estimate and should not be treated as a static result.

The OS does a very good job analyzing your battery and making sure it isn't overcharged.
 
Last edited:

jerryk

macrumors 604
Nov 3, 2011
7,421
4,208
SF Bay Area
There is nothing wrong with your new M1. You will drive yourself crazy constantly checking Coconut Battery.

Your battery is an ever changing chemical process. Battery health is an estimate and should not be treated as a static result.

The OS does a very good job on analyzing your battery and making sure it isn't overcharged.
Agreed. I never install Coconut Battery. Measuring the state of charge is not a precise science. Any value received is an estimate from indirect techniques and dependent on things like temperature, the charge of the battery, the specific battery's discharge curve, etc.
 

Apple_Robert

Contributor
Sep 21, 2012
35,665
52,468
In a van down by the river
Agreed. I never install Coconut Battery. Measuring the state of charge is not a precise science. Any value received is an estimate from indirect techniques and dependent on things like temperature, the charge of the battery, the specific battery's discharge curve, etc.
For what it does, I think Coconut Battery is a good app. The problem is it is heavily recommended here and a lot of people start getting Coconut Battery tunnel vision.

If someone thinks there may be a problem with the battery on their M1, I always recommend running the Apple hardware diagnostics test. A lot of times, the test will find potential problems that one may not even be seeing any signs of.

 
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Maconplasma

Cancelled
Sep 15, 2020
2,489
2,215
I thought that was the whole point of Apple adding the Battery Health feature so we would get a more accurate reading and not have to rely on 3rd party utilities that may not always work perfectly.
 
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deeddawg

macrumors G5
Jun 14, 2010
12,468
6,570
US
@Jacoblee23

I also wonder if the third party apps are misinterpreting what they're seeing?

Right now my MBP has been plugged in for three or four days. It's showing "Charging on Hold" and the battery at 92%. Battery Health states maximum capacity is 100%. All completely normal. However a third party app might see that it's plugged in, not charging,
 
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