A hand-guided battery-operated electric power tool designed as a polishing or sanding machine comprising - a tool housing with a longitudinal extension along a longitudinal axis of the power tool, - an electric motor and at least one battery for operating the electric motor, wherein the electric motor and the at least one battery are received in the tool housing, - a working element designed as a backing pad, wherein a bottom surface of the backing pad is adapted for releasable attachment of a polishing or sanding member, which is rotatable about a first axis of rotation, - a tool shaft which is rotatable about the first axis of rotation and to which the working element is directly or indirectly attached such that it protrudes from a front part (4.1) of the tool housing, - wherein the first axis of rotation extends at an angle of >0° and <180° in respect to the longitudinal axis of the power tool, and - wherein the tool housing comprises along its longitudinal extension the front part (4.1) into which the first axis of rotation extends, a rear part (4.3) opposite to the front part (4.1), and a centre part (4.2) between the front part (4.1) and the rear part (4.3), characterized in that the electric motor is located in the front part (4.1) of the tool housing and the at least one battery is located in the centre part (4.2) of the tool housing, and in that a motor shaft of the electric motor is directly connected in a torque-proof manner to the tool shaft of the power tool or constitutes the tool shaft, or alternatively the motor shaft of the electric motor is indirectly connected to the tool shaft of the power tool by means of a transmission mechanism, wherein in both cases the motor shaft of the electric motor is rotatable about the first axis of rotation. - a tool housing with a longitudinal extension along a longitudinal axis of the power tool, - an electric motor and at least one battery for operating the electric motor, wherein the electric motor and the at least one battery are received in the tool housing, - a working element designed as a backing pad, wherein a bottom surface of the backing pad is adapted for releasable attachment of a polishing or sanding member, which is rotatable about a first axis of rotation, - a tool shaft which is rotatable about the first axis of rotation and to which the working element is directly or indirectly attached such that it protrudes from a front part (4.1) of the tool housing, - wherein the first axis of rotation extends at an angle of >0° and <180° in respect to the longitudinal axis of the power tool, and - wherein the tool housing comprises along its longitudinal extension the front part (4.1) into which the first axis of rotation extends, a rear part (4.3) opposite to the front part (4.1), and a centre part (4.2) between the front part (4.1) and the rear part (4.3), the electric motor is located in the front part (4.1) of the tool housing and the at least one battery is located in the centre part (4.2) of the tool housing, and in that a motor shaft of the electric motor is directly connected in a torque-proof manner to the tool shaft of the power tool or constitutes the tool shaft, or alternatively the motor shaft of the electric motor is indirectly connected to the tool shaft of the power tool by means of a transmission mechanism, wherein in both cases the motor shaft of the electric motor is rotatable about the first axis of rotation.