This one actually works with a Hoover, where as the older square head model spits dust, its now up there with DeWalt, festool, flex, and mirka! Used 5 batteries (4.5 really) when sanding taping in a big 4 bed house! Which I think is pretty good. If you were to use the 38v battery Hoover as well, you'd probably need close to 13 batteries in total I reckon.

gips schleifen