Plugged in but not charging?

'''++Coby Hong++'''  this does sound like an issue with your charger. So check that first. Turn your computer off and remove the battery. Then with your AC adapter plugged in see if you can restart the computer. If so you know that it works. You did not tell us if your battery holds a charge and if you can run the laptop on battery power alone. If that charger looks okay try this:

Restart your laptop and press F2 when dell logo appears to enter the bios setting there disable advanced battery charge mode and press F10 to save & exit the setting.

Depending on if you are running Windows and which version you are using you can try to open the Device Manager. Under "Batteries" you should see three items, one for the battery, another for the charger, and a third listed as "Microsoft ACPI Compliant Control Method Battery". Open each one of those and go to the properties window. there click on the "Driver" tab and then "Update Driver." Update the drivers for each one of the items.Go through the driver update process for all three. Once all the updates are done reboot your computer and plug it in again. If this did not resolve the problem see if uninstalling "Microsoft ACPI Compliant Control Method Battery" will fix this..