I have one of the Dell XPS 13's, and while the machine itself is great, you should take note that the power adapters are Dell-specific. I noticed this after my

I have one of the Dell XPS 13's, and while the machine itself is great, you should take note that the power adapters are Dell-specific. I noticed this after my original power cord got cut and none of the replacement adapters I purchased worked. Dell's adapters send a signal that is picked up by a chip on the motherboard that will disable charging unless that signal is detected. This check is beneath the level of the OS or even the BIOS. Effectively, that means that you're stuck paying a Dell markup (which can be substantial - 100% was what I saw) for an official charger.