Patent ID: 9748778
Date: 2017-08-29
CPC Classifications: H01M,H02J,Y02E

Claim:
1. A power supply apparatus which supplies power to an external apparatus by using a battery pack, the power supply apparatus comprising: a connector to which the battery pack is connected, the battery pack being electrically connectable to another apparatus and being detached from the other apparatus when connected to the connector; a power receiver configured to receive power supplied from an external power source of a type different from a type of the battery pack; an outlet configured to supply power to the external apparatus via a power receiver of the external apparatus through connection of the power receiver of the external apparatus to the outlet; and a switching circuit configured to switch between (i) outputting, to the outlet, first power which is the power output from a terminal of the battery pack via the connector and (ii) outputting, to the outlet, second power which is the power supplied from the external power source via the power receiver of the power supply apparatus.