rfmaster93:
What is "4V4", "1V7" etc...? I have never seen "XVX" before and am not sure what you mean
Yes you have, it's on the Arduino board. Look at the power header next to the analog in pins... It's short hand for "4.4V".
If you're killing 9V batteries in 20 minutes the isn't a surpise. They aren't designed for more than 30mA. Above that and their life drops expontiontially. Even 6 AA cells will work significantly better than a small 9V.
6V through the on board regulator is iffy at best. Draw too much current and it simply won't work.