macbook pro 2015 ลง OS Big Sur แล้วกินแบตมาก และ imessages ติดต่อโทรศัพท์กับเครื่อง mac ไม่ได้ครับ

Hi aniruthemnut,

Thank you for using the Apple Support Communities. You’ve posted a question in the English Community. If you are able to repost your question in English, you may reach a larger audience and have a better chance of receiving a reply.

Thanks!

Thanks for the reply aniruthemnut,

Let's try following the steps outlined here and see if you note any improvement.

About battery health management in Mac notebooks

Cheers!