Battery Service Recommend Error

Run the Apple Diagnostics to see if any hardware issues are detected. Unfortunately the new battery condition status has been dumbed down so this condition could just mean the battery capacity has dropped below 80% of the original Design Capacity or it may mean macOS has detected a hardware issue with the Battery. If the diagnostic does not report any issues and the battery is working fine for you, then just ignore this condition until the battery no longer performs adequately for you. Before macOS 10.15 these conditions had their own unique listing so it could easily be determined whether there was anything to worry about. You can also use the third party app Coconut Battery to see the Batterie's current capacity in relation to the original Design Capacity.

Probably your battery needs to be replaced.

Still, you could try

How to reset the SMC of your Mac - Apple Support