<p>Provided is a power-assisted mobile device which is capable of suppressing excessive battery consumption when the power-assisted mobile device is not in use by allowing the electrical connection between a motor and a battery to be disconnected by means of a predetermined operation. The power-assisted bicycle (10) according to the present invention is a power-assisted bicycle (10) that is equipped with a motor (26a) for generating auxiliary power and a battery (28a). The power-assisted bicycle (10) is equipped with a switch (90a) for switching the electrical connection between the motor (26a) and the battery (28a) and a kickstand (80) serving as a stationary-state maintaining means for keeping the power-assisted bicycle (10) stationary. The electrical connection can be disconnected with the switch (90a) in conjunction with an operation for performing a function for maintaining the stationary state with the use of the kickstand (80), and the electrical connection can be established with the switch (90a) in conjunction with an operation for performing a function for undoing the stationary state.</p>
