According to one embodiment, an electronic device includes: a first interface and a second interface, each interface being connected with outside of the electronic device to supply power to a connection destination or receive power from a connection destination; a storage configured to store therein first identification information; a transmitter configured to transmit first information containing the first identification information to a first device when the first interface serves as a source to supply power, the first device being the connection destination of the first interface; a receiver configured to receive second information containing second identification information of a second device from the second device when the second interface serves as a sink to receive power, the second device being the connection destination of the second interface; and a controller configured to stop reception of power via the second interface when the second information contains the first identification information.