ELECTRICALLY OPERATED MOBILE VACUUM CLEANER

The invention refers to an electrically operated mobile vacuum cleaner (2) for separating dust and particles from a suction flow (35), comprising- an electric motor (38) and a turbine (40) for generating the suction flow (35),- a vacuum cleaner housing (4, 6; 32) with a collection chamber (8) for collecting dust and particles separated from the suction flow (35),- a battery cell (116) for providing the electric motor (38) with electric energy for its operation,- wheels (20) assigned to the vacuum cleaner (2).It is suggested that- the battery cell (116) forms an integral part of an extractable battery pack (100a, 100b),- the vacuum cleaner housing (4, 6; 32) comprises a recess (62) opening towards the environment and adapted to receive the battery pack (100a, 100b) in a direction (104) parallel to a longitudinal extension (136),- the battery pack (100a, 100b) is equipped with first electrical contact elements (60; 60') electrically connected to the battery cell (116), and- the recess (62) is equipped with second electrical contact elements (64; 64') electrically connected to the electric motor (38).The contact elements (60, 64; 60, 64') are adapted to automatically enter into a mutual electric contact upon insertion of the battery pack (100a, 100b) into the recess (62) for establishing an electric connection between the battery cell (116) and the electric motor (38) and for operation of the vacuum cleaner (2) by means of electric energy from the battery cell (116).