Originally Posted by Bevdeforges

Every HP laptop I've dealt with (and our business sells the things) has the charger rated for both 110V and 240-250V so you're fine on the charger side of things. (Do check the "brick" part of the charger just to be sure.)

You don't actually have to purchase a power cord. I've functioned for a long time with just a plug adapter for my computer (i.e. when I take it to the US). The power cord is a more practical option, though, especially for the long term. Any store that sells HP laptops should have the cords - that includes Carrefour and Auchan, FNAC, Darty, etc.
Cheers,
Bev