Hallo.

well the first Thing you can try is run the EPSA Test. turn on the Laptop and hit F12.

tell us if there are any Errors or not.

Hi ShadowSuave‌,

Try a power drain, use this video as a reference on how to perform it: Alienware: Power Drain - YouTube 

One of the power drain steps is to disconnect the battery cable, here you can see some pictures that will show you how to do it in case you need it:

Service Door
1.	Pre-Removal Instructions Before removing the Service Door: During installation or removal of any hardware, always make sure all data is backed up properly. Disconnect any telephone, network, or USB cables from the computer. Disconnect the computer and all attached devices from their electrical outlets.
2.	Locate the service door.
3.	Loosen the two captive screws that secure the service door to the computer base.
4.	Pry up the service door and lift it off the computer base. Use a scribe, if necessary.
5.	Disconnect the battery cable from the system board.

Then as CarbonBasedLifeform‌ suggested: Try running an ePSA/Diagnostic test on the system, click here to view a Dell article that explains how to run this test. Let me know if you receive any errors.