nubiangurl wrote:
Hi, it's been a while but my macbook battery randomnly became and issue where it won't charge. I'm no longer under warranty (figures). I saw that upgrading to Big Sur could possibly fix those issues, but with no luck.
Is it an expensive process to send this in to get done?
You give no detail...
You neglect to say what exact Mac this is and what exact macOS...(?)
The battery health management software (BHM) can put on hold your charging this is the new normal.
It interpolates your usage pattern, 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."
About battery health management in Mac notebooks— introduced with macOS10.15.5
https://support.apple.com/en-us/HT211094
If you think you have an issue beyond this
Call Customer Support (800) MY–APPLE (800–692–7753)
or on line https://getsupport.apple.com/
or call AppleCare Support at 1-800-APLCARE (800-275-2273)