Why is my laptop battery draining quickly?

Check the charging port and cord for any physical damage:

Verify the charging port of your laptop is in working condition and the power cord is properly connected.
Analyze your power settings:

Check and adjust the power settings for your laptop. Some settings may be using more power than needed, draining your battery faster.
Check the health of your battery:

Verify the health of your laptop battery by running a hardware diagnostic
Install any pending OS updates

Check for any Operating System updates and install them as soon as possible.
Reduce running applications and programs:

Close any unnecessary applications and programs that are running in the background, as this could also be causing your battery to drain quickly.