Here is a list of steps you can follow to help determine why your laptop battery may be draining too quickly:

1. Check the brightness of your laptop display and adjust it accordingly.
2. Uninstall unnecessary programs from your laptop.
3. Close programs and applications that are not in use.
4. Turn off Wi-Fi if it is not being used.
5. Turn off features like Bluetooth and location settings.
6. Change your power settings so your laptop can run more efficiently when it is unplugged.
7. Update your laptop's system software.
8. Ensure that your battery is charging correctly and verify that it is the correct model of battery for your laptop.
9. Remove any battery extenders or power supply units that have been installed on your laptop.