A power supply device, comprising: a power source specifying unit operable to specify a type of a power source; a power receiving capability specifying unit operable to specify a power receiving capability of a power receiving device; a collating unit operable to perform collation of the specified type of the power source with the specified power receiving capability; and a power control unit operable to control transmission of electric power from the power source of the specified type to the power receiving device based on the collation; a communication unit operable to perform communication with the power receiving device, wherein: the power source specifying unit is operable to specify a plurality of types of power sources; the collating unit is operable to perform collation of the plurality of specified types of power sources with the specified power receiving capability, and operable to select, from a plurality of power sources of the specified plurality of types, a power source that is configured to supply electric power that does not exceed the specified power receiving capability of the power receiving device; the power control unit is operable to control transmission of electric power from the selected power source to the power receiving device based on the collation; and specifying the power receiving capability of the power receiving device comprises specifying the power receiving capability of the power receiving device based on identification information received using the communication unit. a power source specifying unit operable to specify a type of a power source; a power receiving capability specifying unit operable to specify a power receiving capability of a power receiving device; a collating unit operable to perform collation of the specified type of the power source with the specified power receiving capability; and a power control unit operable to control transmission of electric power from the power source of the specified type to the power receiving device based on the collation; a communication unit operable to perform communication with the power receiving device, wherein: the power source specifying unit is operable to specify a plurality of types of power sources; the collating unit is operable to perform collation of the plurality of specified types of power sources with the specified power receiving capability, and operable to select, from a plurality of power sources of the specified plurality of types, a power source that is configured to supply electric power that does not exceed the specified power receiving capability of the power receiving device; the power control unit is operable to control transmission of electric power from the selected power source to the power receiving device based on the collation; and specifying the power receiving capability of the power receiving device comprises specifying the power receiving capability of the power receiving device based on identification information received using the communication unit. the power source specifying unit is operable to specify a plurality of types of power sources; the collating unit is operable to perform collation of the plurality of specified types of power sources with the specified power receiving capability, and operable to select, from a plurality of power sources of the specified plurality of types, a power source that is configured to supply electric power that does not exceed the specified power receiving capability of the power receiving device; the power control unit is operable to control transmission of electric power from the selected power source to the power receiving device based on the collation; and specifying the power receiving capability of the power receiving device comprises specifying the power receiving capability of the power receiving device based on identification information received using the communication unit.