Kali boot on battery

Hi, I've installed Kali, and everything works.
I have not seen some problem like mine in other treads, so I submit it here.
My problem is that when my laptop is wired, there is no problem, and I get to the login screen.
But when my laptop is on battery and that I boot, the screen freezes on the loading page (with the animation of the dragon going blue) and the login screen doesn't show up.
In some case tho I get to the login screen, but it freeze anyway.
I hope that you guys can help me, and that my problem is clear.
Anyway, excuse my english if there are some mistakes.
Thank you in advance !