clive_thompson wrote:
there are many posts saying how machines shut down when unplugged. There are no answers. This is ridiculous. Does anyone have an answer?. Is apple refusing to fix this?. surely its a software glitch? why has it not been fixed... this is not a new problem.
You say very little ?
what exact Mac, what exact macOS, old issue, new issue, what changed?
≤ 80% maximum capacity is when Apple suggests the battery is eligible for replacement
Get help with your Mac notebook battery
Learn how to optimize the life of the battery in your Mac notebook, fix battery issues, and get service.
If you see Service Recommended on your MacBook Air or MacBook Pro - Apple Support