battery health not showing

todrodman wrote:

battery health not showing

Yes,

limited to Mac laptops with Thunderbolt 3 ports. That equates to all MacBook Pro models released since late 2016 and the Retina-capable MacBook Air models released since 2018.

With the release of macOS 11.0.1 Big Sur see >System Preferences>Battery

About battery health management in Mac notebooks https://support.apple.com/en-us/HT211094

What model MacBook do you have? It must have Thunderbolt 3 ports which I think were 2018 and later.