How do I know whether the SMC reset worked or not?

Hi,

Try to check your MacBook Pro with Apple Diagnostics if it reports battery or power related error.

Use Apple Diagnostics to test your Mac - Apple Support

Apple Diagnostics reference codes - Apple Support

If it reports error or not, you'd better make Genius Bar reservation if there is retail AppleStore located near you or find local Apple Authorized Service Provider to be examined your MacBook Pro there.

Genius Bar Reservation and Apple Support Options - Apple

Apple - Find Locations - Location Selector

gloriaSekyere wrote:

My battery is an indication that the charger is plugged in even when it's not. Because of this, I am also unable to charge my laptop unless I force a restart while the charger is plugged in. I have tried resetting the SMC but the problem persists. How can I verify if the SMC reset was successful?

You do not say what exact Mac...?

M1 has no SMC.— reset equivalent is Shut down, close the lid 30 secs+ , reboot as normal

no resolve—Try a SafeBoot How to use safe mode on your Mac - Apple Support

Intel Macresetting the SMC How to reset the SMC of your Mac - Apple Support

old Mac's of ~ ≤ 2012 vintage can have an issue with the DC-in board —which is an inexpensive fix if you narrow it down. Any computer repair can replace this part...Parts & labor $115.00 USD

See Trouble shooting—

Apple Portables: Troubleshooting MagSafe adapters

If your MagSafe cable or power adapter isn't working - Apple Support

If your USB-C power adapter isn't charging your Mac notebook

If your USB-C power adapter isn't charging your Mac notebook - Apple Support

If battery charging is paused or on hold on your Mac

If battery charging is paused or on hold on your Mac - Apple Support

see vintage and obsolete:

Obtaining service for your Apple product after an expired warranty - Apple Support

Obtaining service for your Apple product after an expired ...