Electric power tool

There is provided an electric power tool including: an electric motor; a first battery; a second battery; a first controller configured to control the electric motor at a first operating voltage supplied based on a first power supply voltage supplied from the first battery; a communication device; and a second controller configured to control the communication device at a second operating voltage supplied based on the first power supply voltage supplied from the first battery, and configured to control the communication device at the second operating voltage supplied based on a second power supply voltage supplied from the second battery when the first power supply voltage is not supplied from the first battery. The second controller is configured to execute a reset operation when a predetermined condition is satisfied.