I have an Alienware 14, and recently it refuses to charge past 45%. I'm aware it may be an issue with the battery, but the thing is that it used to do this a while back, with 53%. and then one day, it just fixed itself and i've been fine at 100% for months, until yesterday when it just went down to 45% (as i';m looking at it now, it says "46% available (plugged in, not charging) does anyone know what might be the reason? I've tried updating the BIOS, i've uninstalled and reinstalled the Compliant battery thing in device manager, and i'm still unsure what could be the issue here.
Are you using the original Dell OEM adapter? When you plug in the adapter to the system, does the adapter stay firm or does it fall off easily? Is the adapter frayed? Is there any damage on the system? Could you test with another power adapter if possible?
Restart the system and press f2 key to enter BIOS - check the adapter status in BIOS with and without the adapter plugged in. Also, wiggle the adapter cable at the end and see if the status changes in BIOS at any point. Check the battery health in BIOS (if applicable).
Restart the system and press f12 key on startup - choose diagnostics. Let it run the diags and if you encounter any errors - make a note of the complete error and report the same to us.
Write me a private conversation with the service tag and your contact details(Name and Email) for case records.