I don't why the battery run fast, I put my MacBook Pro in the charge for the whole time. in addition , its shut Down it self when the battery reach 16% or some time 20%!!!
in System Preferences for battery there is a massage said "the battery's capacity is significantly reduced. to restore capacity, please check your service options" I don't understand what that mean . Can anyone explain to my? Think you.
MacBook Pro 13″, macOS 11.0
Your battery may be approaching the end of its useful life, and may need to be replaced soon.
Batteries are a wear item, like the soles of your shoes or the tires on your car, and may need to be replaced when either their number of charge cycles OR their "shelf-life" has been exceeded.
In addition, Lithium-polymer batteries can be quirky, and occasioanally a battery loses its capacity and need to be replaced for no obvious reason.
To get service on your battery, contact Apple.
How can I replaced it?
Battery problem
