Hello Aqua 66 I can answer your questions as follows. My Dreame Aqua 10 Ultra Roller loses a few drops of water each time I drive over the thresholds, which is why I have set the settings so that it cleans from the furthest point to the closest point to the base station and thus collects its drops of water again. By vacuuming and mopping at the same time, it manages an area of 88m2 with 100% battery and needs 115 minutes to do this, then it is at about 15% or less and has to go back to charge. However, I can't give you an exact answer as to how much less it needs just to vacuum. I have more problems with the cover for carpets, which likes to get stuck and that means restarting or pragmatically no more carpets.