Does the ring of light stop during charging?

[gpgorbosjr]

Hey, I've been charging my Pro for a while now, and noticed that the light stopped going around in the circle. I never actually paid attention to the light before, and was wondering if it stops going around in a circle after a while?

When I take the cable out and put it back in it starts going around in the circle again for the same amount of time and then turning off.