Printing apparatus, control method, and storage medium

A printing apparatus including a power storage unit configured to be capable of storing power supplied from an external device connected via a connection unit, the printing apparatus being capable of executing processing to perform printing on a conveyed print medium by using the power as well as power stored in the power storage unit, the printing apparatus comprising:

• a supply unit configured to supply power to a configuration configured to execute the processing;
• and
• a control unit configured to control power supplied from the external device to be output to the supply unit and the power storage unit,
• wherein, in a case where printing is performed, the control unit is configured to execute
• outputting of power to the supply unit and the power storage unit in parallel until a predetermined timing in a case where power is supplied from the external device, and
• outputting of power stored in the power storage unit to the supply unit in a case where supply of power from the external device is stopped, so as to execute predetermined processing in accordance with an amount of power stored in the power storage unit.