A:Answer Haven't really timed it but probably 1-2 hours. While it's running I'm doing other things around the house, picking up, washing clothes, whatever needs to be done I do while my vacuum is running. I start with a different room everyday and make sure that room is totally vacumed and then I just let it run throughout the whole house where ever it goes and I keep busy doing other things till it finally has to return to the dock to recharge itself. Yes, I do have to sweep or take time for some areas it misses but when I don't I still get cleaner floors regardless because to run a manual vac means I don't get to the other things so easily and that makes it great !!! Love it !!!