So far after five hours I have 50 percent battery left. Now, I did have to restart the tab a number of times because I believe my router caused a problem in Netflix and corrupted a file because it would not stop freezing the tab until I uninstalled the Netflix updates and then reinstalled them.
I must have had to restart the tab at least five times and I think this action used some of the battery. At the rate I am at now, I am looking at 10 hours for movie viewing.