ELECTRONIC DEVICE, PRINTING APPARATUS, AND METHOD FOR CONTROLLING ELECTRONIC DEVICE

An electronic device includes a control unit that allows at least a first external power source to be connected thereto and is activated upon receipt of a predetermined power, and a power source connected to the control unit. In an activated state, the control unit performs enumeration processing between the control unit and the first external power source. The power source has charging unit capable of being charged by a charge current supplied from the first external power source, and output unit that outputs the predetermined power from the charging unit to the control unit in response to a connection between the control unit and the first external power source. The charging unit sets the charge current to a current value according to whether the enumeration processing is completed.