Can I use 45 Watt adapter for dell inspiron 15 5559?? I got the adapter along with the laptop when I bought it. But a warning is displayed on screen prompting me to use 65 Watt adapter... If so why 65 Watt adapter wasn't given with the laptop instead of 45 Watt?
The system is designed to support both 45W and 65W adapters - see the specifications here - http://dell.to/2fhPLIf
When you plug in the adapter to the system, does the adapter stay firm or does it fall off easily? Is the adapter frayed? 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.
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.These are onboard diagnostics and they might possible pick some error if the hardware is not functional.
Also, please click my DELL-username and write me a private conversation with the service tag and your contact details(Name and Email) for case records.
Let us know if you have any other queries.