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my new macbook does not charge to 100% even it's plugged in in a period of time. is this normal or what? it only stays to 99%, i read some articles that it is normal, just want to confirm it here
MacBook Pro 13″, macOS 11.2
ethanfrombacoor wrote:
my new macbook does not charge to 100% even it's plugged in in a period of time. is this normal or what? it only stays to 99%, i read some articles that it is normal, just want to confirm it here
I would not be concerned
About battery health management in Mac notebooks— introduced with macOS10.15.5
https://support.apple.com/en-us/HT211094
The battery health management software (BHM) can put on hold your charging this is the new normal.
It interpolates your usage pattern and learns as it goes, and can hold it at 92% 84% 72% etc. however it deems best.
Click the battery icon in the upper right if you need 100% charge for portability (or Option click)
"When battery health management is turned on, your battery's maximum charging capacity might be limited. Although the feature is designed to improve your battery's lifespan, the limited maximum capacity might update your battery status menu to indicate a need for service. Your Mac calculates when to recommend service for your battery based on battery health management being continuously enabled."
Determine battery cycle count for Mac notebooks
https://support.apple.com/en-us/HT201585
ethanfrombacoor wrote:
my new macbook does not charge to 100% even it's plugged in in a period of time. is this normal or what? it only stays to 99%, i read some articles that it is normal, just want to confirm it here
I would not be concerned
About battery health management in Mac notebooks— introduced with macOS10.15.5
https://support.apple.com/en-us/HT211094
The battery health management software (BHM) can put on hold your charging this is the new normal.
It interpolates your usage pattern and learns as it goes, and can hold it at 92% 84% 72% etc. however it deems best.
Click the battery icon in the upper right if you need 100% charge for portability (or Option click)
"When battery health management is turned on, your battery's maximum charging capacity might be limited. Although the feature is designed to improve your battery's lifespan, the limited maximum capacity might update your battery status menu to indicate a need for service. Your Mac calculates when to recommend service for your battery based on battery health management being continuously enabled."
Determine battery cycle count for Mac notebooks
https://support.apple.com/en-us/HT201585
ethanfrombacoor wrote:
ohh really? but does it help the battery cycle go up fast?
It is just the opposite of what you state—
The more you draw on the battery, the more cycle count it uses. It is not rocket science.
please refer to the link I posted above :
Determine battery cycle count for Mac notebooks
https://support.apple.com/en-us/HT201585
If you are still at a loss Call Customer Support (800) MY–APPLE (800–692–7753)
ethanfrombacoor wrote:
one more thing leroy, should i wait before i unplug my macbook until its 100%? or should i unplug it right away after staying at 99%?
Use it as you see fit. You do not have to micro-manage the battery.
No harm being on the mains 24/7 your battery will never over charge. The more you are on the mains the longer overall life the battery will have.
The general rule is if you are near the mains leave it plugged in, if you need portability then run on the battery.
ethanfrombacoor wrote:
okay i learned so much, thank you! I guess i'll start to plug my macbook more often, i got scared plugging it always since it may overcharge my battery and reduce its lifespan.
Good computing ethanfrombacoor !
okay i see. i just thought that it is a problem since it doesn't charge to 100%. it's good to know that apple managed to prolong the lifespan of macbooks
one more thing leroy, should i wait before i unplug my macbook until its 100%? or should i unplug it right away after staying at 99%?
ohh really? but does it help the battery cycle go up fast?
why is it better to keep it plugged in?
okay i learned so much, thank you! I guess i'll start to plug my macbook more often, i got scared plugging it always since it may overcharge my battery and reduce its lifespan.
thank you so much!
New MacBook does not charge to 100%
