A power supply startup system comprising: - a battery (9a, 9b, 9c); - a device supplied with a power from the battery (9a, 9b, 9c); and - a controller configured to perform wireless communication with the device and is separately provided with the device, wherein the device has: - a power supply section which serves as a power supply by using the power supplied from the battery (9a, 9b, 9c), - a startup section, configured to receive a wireless startup signal transmitted by the controller and configured to output a startup signal to the power supply section, - a control section configured to control the power supply section and the startup section, and - a wireless communication section configured to perform wireless communication with the controller, characterized in that: - the wireless startup signal has two signal regions of a first stage and a second stage which is different from the first stage, - the startup section, is configured to output a first startup signal to the power supply section when the startup section receives the wireless startup signal of the first stage, - the power supply section, to which the first startup signal has been input, is configured to start supply of a first power to the startup section,, - the startup section supplied with the first power is configured to output a second startup signal to the power supply section when said startup section, receives the wireless startup signal of the second stage, and - the power supply section, to which the second startup signal has been input, is configured to start supply of a second power different from the first power to the control section, and - the control section is configured to start control of operation of the power supply section, the startup section,, and the wireless communication section. - a battery (9a, 9b, 9c); - a device supplied with a power from the battery (9a, 9b, 9c); and - a controller configured to perform wireless communication with the device and is separately provided with the device, - a power supply section which serves as a power supply by using the power supplied from the battery (9a, 9b, 9c), - a startup section, configured to receive a wireless startup signal transmitted by the controller and configured to output a startup signal to the power supply section, - a control section configured to control the power supply section and the startup section, and - a wireless communication section configured to perform wireless communication with the controller, - the wireless startup signal has two signal regions of a first stage and a second stage which is different from the first stage, - the startup section, is configured to output a first startup signal to the power supply section when the startup section receives the wireless startup signal of the first stage, - the power supply section, to which the first startup signal has been input, is configured to start supply of a first power to the startup section,, - the startup section supplied with the first power is configured to output a second startup signal to the power supply section when said startup section, receives the wireless startup signal of the second stage, and - the power supply section, to which the second startup signal has been input, is configured to start supply of a second power different from the first power to the control section, and - the control section is configured to start control of operation of the power supply section, the startup section,, and the wireless communication section.