Patent ID: 7750587

Claim:
A method of controlling a motor ( 11 ) for driving a working tool ( 12 ) of a battery-operated power tool ( 10 ) in an “on” position of a motor switch ( 21 ), comprising a first step ( 31 ) in which an electronic device ( 22 ) of a control device ( 20 ) is initialized and the motor ( 11 ) is switched on; a second step ( 32 ) in which a motor current (IM) and a battery voltage (UB) are continuously monitored; a third step ( 33 ) in which the battery voltage (UB) is continuously compared to a threshold value (GW) stored in a memory of the electronic device ( 22 ), with the third step ( 33 ) and the second step ( 32 ) alternating with each other; and a further step ( 36 ) in which the battery voltage (UB) is continuously monitored for a predetermined time period (T) following a detection of an “off” position of the motor switch ( 21 ) by the electronic device ( 22 ).