My controller keeps disconnecting...

my controller keeps disconnecting. i dont know why. it has 3 bars for batteries so that cant be the problem. it started happening today. my controller is also in good shape so it cant be broke...any thoughts?

Resync permanently again. That might help. I honestly don't know, my initial thought was batteries but you said they weren't the problem.

You can see how to sync in the setup manual that shipped with you Xbox 360.

usually due to a loose connection with the pack to the controller.