CHARGING SYSTEM

The charging system of the present disclosure includes: an electronic device having a first battery; and a charging device, in which the charging device includes a second battery that charges the first battery, a determination unit that determines whether or not the first battery is chargeable to a fully charged state, on the basis of a remaining charge amount of the first battery and a remaining charge amount of the second battery, and a charging control unit that controls a start of charging of the first battery by the second battery, on the basis of a result of the determination of the determination unit.