Originally Posted by stuntdouble
If you do what I suggested in the post above yours, it shows that data. It just seems like they linked the code to display on the wrong page.
There are two tabs: Battery use, and History details
"Battery use" should show (and does on the Xoom) what system components/items are using battery by percent, such as what's showing on my Xoom now: Display 38%, Android OS 20%, Gallery 14%, Tablet Idle 8%, etc.
Clicking on the chart takes you to the "History detail" tab, which shows the status of the system, e.g., GPS on, Wi-Fi, Awake, Screen on, Charging.
Where it should be showing the "Battery use" information, the TF is showing "Battery usage data not available." That's a bug.