m14x ac adapter with m17x

Hey guys...my m17x power brick died the other day. I am going on a trip tomorrow so I don't have time to order another...would it be ok to use the one from my m11x as a temporary replacement? It fits and it keeps it powered although it says its not charging. I just don't want anything to get messed up if I do some heavy gaming like an overload...what do you think?

Edit sorry messed up the title I meant m11x