A charging apparatus is for a vehicle and the charging apparatus includes a charging port, an AC-DC converter, a capacitor, a DC-DC conversion unit and an electronic control unit. The electronic control unit is configured to reduce an output current from the DC-DC conversion unit to at least one of the electric power storage device or the auxiliary load in response to a deterioration from a predetermined state of a state of the electric power supplied from the outside of the vehicle to the charging port.