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Gywrdallon

3 Posts

17663

August 10th, 2015 18:00

Computer not recognizing that it is plugged in.

I have an issue that I hope someone knows the answer to. My computer does not recognize that it is plugged in. The Battery Icon does not show that it is plugged in, but does show that my my battery is good for 4440 hours, and I have not lost any battery charge in the several hours I have been using it. When I tried taking out the battery it shut off as if it were not plugged in.. Also the screen brightness keeps flickering between power saving mode and regular.  This has happened using several different outlets, and the cord always has it's green indicator light on. It will occasionally briefly recognize that it is plugged in but then go back to thinking it is running on batteries.  I'm trying to figure out if it is a battery issue, a power cord issue, or a board issue.  (I'm really hoping one of the first two).  If this sounds like anything somebody knows about please let me know.

DELL-Ravi Ch

7 Technologist

 • 

7.1K Posts

August 10th, 2015 19:00

Hi Gywrdallon,

We will have to check the status of the adapter in BIOS; if the adapter is not detected properly the system will continue to receive power but will not charge the battery. Please follow the steps mentioned below to check if the adapter is detected properly.

  1. Start the computer by pressing the power button
  2. Press the F2 key 2-3 times
  3. you will now be on the BIOS screen
  4. Under the Main Tab look for the option that says AC Adapter Type
  5. If the Adapter Type says Unknown or None with the adapter plugged in.
  6. Reconnect the adapter to the machine and if the status now shows as Unknown then the AC Adapter needs to be replaced.

Also, I would suggest that you run the diagnostics on the computer after the above steps by following the steps mentioned in the video below and check if there is any issue with the hardware on your system.

http://dell.to/164l6g4

In addition, If the AC adapter is detected then I would suggest you to update the BIOS on the computer. Please enter your service tag # on the link below, then download the BIOS required onto the system and install it.

http://dell.to/18r60nI

Please let me know the findings.

Gywrdallon

3 Posts

August 13th, 2015 07:00

So the BIOS recognized the adapter as a 90w adapter, so all good there.  I ran the diagnostic and it said that battery health was only 11%, maybe that is what caused it, but it sounds more like some sort of software bug, as it has completely fixed itself now.  The last day and a half no problems with it whatsoever.

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