Re:The Nightmare of Replacing a Battery on a Mac Laptop
by matthewmacleod on Wednesday October 28, 2015 @12:14PM
(#10465262)
Apple do provide details on how to calibrate a battery correctly; it should be part of your general maintainance, though I'll bet barely anybody bothers in practice. See https://support.apple.com/kb/PH14087
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Re:The Nightmare of Replacing a Battery on a Mac Laptop
by ant6n on Wednesday October 28, 2015 @12:26PM
(#10465381)
"If your portable Mac has a built-in battery, you don’t need to calibrate the battery."
Also, this 'calibration' is just charging and discharging. Which happens normally. Also, the mac doesn't go to sleep, it crashes, so I guess it doesn't get calibrated.
Maybe I'm holding it wrong. ;)
Re:The Nightmare of Replacing a Battery on a Mac Laptop
by n1000 on Wednesday October 28, 2015 @12:44PM
(#10465565)
It is about the battery controller learning how much charge the battery can still hold. Therefore it needs a completely empty battery and an uninterrupted full charge.
Also on the built-in batteries I found that it helps to get a more accurate battery estimate and improve the "battery health" rating.