Hi Shan,
To isolate the issue further we need to check with a known good adapter. Connect a known good adapter to the computer and check if the battery charges or else you can try connecting this adapter to a different computer and check if the adapter is charging the battery.
Check the battery meter. The Battery Meter is used to check the Status, Life and Health of the Battery. It is launched using the F3 key.
Also, under battery life ensure the box is unchecked for “Disable battery charging”.
You may also check the status of Battery health under “Battery Health”.
Awaiting your response!