Thanks for your help italian mafia. I'm not sure if its the battery or not, the weird thing is that the kits do work but after some time they stop working (like something makes them malfunction and they won't work on any car anymore so, they need to be replaced), I took my car to get checked to the dealer (of course with both kits uninstalled) and they said everything was perfect.
I'd have to be sure its the battery in order to replace it for a "better" one. And I'm not sure I could find that kind of battery here in Mexico City. So, I am planning to get both kits replaced, install just the low lights and sell the ones I had for the fogs as it works as low lights for many other models.

Cheers.