http://www.babylon.com/definition/alimentator/English seems to tell me "feeder" so I'm going to guess that you meant the power "brick."

This is however the Mac hardware Forum so you won't get the best responses here.

Since you are not using the laptop in a normal way, you have to get HP to tell you if it's OK or not. I remember the instructions about how to use the laptop but you are not following those so you need direction from the maker.

Bob

PS. More ideas at http://www.tomshardware.com/forum/251790-28-laptop-alimentator-battery