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MacBookPro (2017) frequently won't charge above 89%
source link: https://forums.macrumors.com/threads/macbookpro-2017-frequently-wont-charge-above-89.2398087/
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Oct 26, 2006
Not all of the time but frequently the battery won't charge above the high 80's. I generally use plugged in at my desk so this isn't crritical unless it is a harbinger of total battery or power system failure.
Venture 13.4.1
I did an SMC reset.
System report:
Full Charge Capacity 5528 mAh
Cycle count 228
Any ideas?
TIA
Venture 13.4.1
I did an SMC reset.
System report:
Full Charge Capacity 5528 mAh
Cycle count 228
Any ideas?
TIA
JPack
macrumors G4
Mar 27, 2017
11,131
20,046
About battery health management in Mac laptops
Mac laptop computers with an Intel processor use battery health management, a feature designed to improve the lifespan of your computer's battery.
support.apple.com
Oct 26, 2006
Thanks. My concern is that two weeks ago this didn't happen and now, all of a sudden, it does. When plugged in it would always show 100% whereas now, with the top closed for 2 hours, it reads 89%.About battery health management in Mac laptops
Mac laptop computers with an Intel processor use battery health management, a feature designed to improve the lifespan of your computer's battery.support.apple.com
chrfr
macrumors G5
Jul 11, 2009
12,812
6,229
It's doing your battery a favor. If you turn off optimized charging, it'll hold the battery at a lower level some of the time when the computer thinks you don't need a full charge. It's not ideal to keep a battery at full charge so this should make it last longer.Thanks. My concern is that two weeks ago this didn't happen and now, all of a sudden, it does. When plugged in it would always show 100% whereas now, with the top closed for 2 hours, it reads 89%.
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