The battery levels are indicated for the controller and the remote. The remote will always have full "battery", since it's powered by an always-on USB port.
I am currently working with Logitech on updating our profiles. Is the "exit" button listed under "Standard Buttons" or "Additional Buttons" on your remote?
Right, the battery level thing makes sense that it's always full. I was more surprised that a single short press of the exit button gave me the battery status. To me, that shows that it is sending a legit signal, just not the one that the controller sends during movie playback.
It's under the "Standard Buttons" page. It doesn't make a difference though if I'm using a standard button or an advanced button both assigned to the same "Exit" command.