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AltecX

macrumors 6502a
Original poster
Oct 28, 2016
524
1,357
Philly
I've had my 12 Mini for less than a year (10 months) but the battery already says it's down to 90% health. To me this seems like a LOT for less than a year. Is anyone else having similar degradation rates?
 

chabig

macrumors G4
Sep 6, 2002
11,303
9,005
That's normal. It would only abnormal if it were below 80%. Then Apple's warranty kicks in and you get a replacement. You must understand that the health rating is very vague. Don't read it any kind os precise measurement.
 

RRC

macrumors 68000
Nov 3, 2020
1,515
2,378
As mentioned, it’s only a guide and isn’t very accurate. Plus a smaller battery will degrade quicker than a larger battery as it has a smaller peak capacity to start with.

Unless you’re noticing a big change, I wouldn’t worry too much.
 

MrTSolar

macrumors 6502
Jun 8, 2017
363
443
I guess 90% health at a year is normal if you charge overnight.

My 2.5-year old iPhone X is at 93%, and my 12 mini purchased in February is still at 100% health. I charge for about 30 minutes in the morning if the phone is low, but otherwise I normally only charge in the car with an occasional 10-100% charge cycle to re-calibrate the gauge.

Unless I find a fix for the idle drain on my 12 mini, I dread the runtime with 10% or more degradation.
 

now i see it

macrumors G4
Jan 2, 2002
10,724
22,557
Come back and complain when the battery Health readout says 79%.
It’s not accurate and only a rough estimate
 
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