Hi Person856,
Thank you for updating me about the issue.
I greatly appreciate also your time doing the troubleshooting steps.
Actually you are correct about that, one of the troubleshooting steps is also to check for possible issue on the power supply unit/item itself, you can do this by trying another way to charge the laptop and if it works on other Power Supply Unit. It could be that the item you have is not compatible or has an underlying issue on its own.
Thank you again for responding Person856.
Continue to be safe.
Best Regards,
Anthony De Jesus
Independent Advisor