How do I know if my controller goes into its "low power state" when I put it down. When I put mine down, the light stays on for about five minutes and then the controller shuts off. To start using it again, I have to press and hold the button for a couple seconds (just like I had to with the 360 controller). Was it in low power mode up until the it turns off completely? If so, shouldn't the light change somehow to indicate this?