After seeing me, wanted to buy a large, heavy vacuum cleaner in a small room that I live at my place of work during the week, I decided based on the product description (and even some reviews) for Leifheit Power Max. This was a mistake, as I have to say after a few weeks. The battery lasts more than 10 minutes, then is peace. The compartment for the dust to work for every little edge or each thrust against an object. The sweeping performance is deficient, whether on smooth floors or carpet (because strangely, even slightly better) .From corners I will not say anything that you return still prefer hand.
All in all ... Stay away from this unit! The money thrown out the window.