Let’s get a bit more info… Download this gem of an App [https://www.coconut-flavour.com/coconutbattery/|CoconutBattery] it will allow you to see your battery’s charge and status. Post a snapshot of the main window here so we too can see things.
I would also see what the onboard diagnostic tells you. Restart your system after resetting things and press the ***D*** key
Reference: [https://support.apple.com/en-us/HT201255|Mac startup key combinations]