Abstract: A power tool, typically battery-operated, such as a lawnmower, comprising: a driven element (9), an electric motor (7) coupled to the driven element so as to drive the driven element, an electric power source (2) electrically coupled to the motor (7) so as to supply electric current to the motor (7) and a control circuit (3) arranged to control the supply of electric current to the motor (7) from the power source (2), and a current sensor (6) operable to output a current signal indicative of the current flowing through the motor (7); in which the control circuit (3) has a high speed mode (40) and a low speed mode (32), the control circuit (3) being arranged so that: when it is in the high speed mode (40), the control circuit supplies electric current to the motor (7) so as to attempt to drive the driven element (9) at a first desired speed (54); when it is in the low speed mode (32), the control circuit supplies electric current to the motor (7) so as to attempt to drive the driven element (9) at a second des

Abstract: A trimmer comprises a cutting head (1) housing a cutter (5), and an elongate shaft (2) for supporting the cutting head. The cutting head (1) is connected to the shaft (2) by connection means (3) permitting the cutting head (1) to be positioned with the cutter (5) either substantially horizontal or substantially vertical. The connection means (3) is such that, when the cutter (5) is substantially vertical, the longitudinal axis of the shaft (2) is parallel to the plane of rotation of the cutter.