I got my new IPP 9.7 yesterday and for me the battery is worse than with my iPad Air. Admittedly I have the screen at about 80% and also use Bluetooth and cellular, but I also did all that with my Air. For example, today I started at 100% and after about 90 minutes of use (including about 30 minutes of Slingbox streaming), I'm down to 63%. Perhaps that's to be expected, but it means I would only get around 4 hours out of it until needing to be charged. Any thoughts?