Error message: "the AC adapter type cannot be determined." when connecting to the CA DELL 90W Adapter

My power adapter is plugged into my laptop, but it is not the battery.  I could use the computer plugged into it.  The message I get is "AC adapter type cannot be determined.  This is the adapter supplied with the notebook, which is DELL 90W AC adapt, and it is the same type that the message in the dialog box tells me to connect.  I can't what causes this problem.

Hi Carlie45,

This can happen due to a faulty adapter. You can try these steps and see if it helps.

> Connect an AC adapter / CC and the various test.

> Plug the computer into a different outlet and check.

You can also check with DELL support for further assistance:

http://support.Dell.com/

Hope this information is useful.

Tags: Windows

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