A temperature detector detects a temperature of a battery. A charging unit charges the battery. A power reception coil receives a first electric power transmitted in a contactless manner from a power transmission coil of a contactless charging device. A supplying unit supplies the charging unit with a second electric power on the basis of the first electric power. A setting unit sets a supply current to be supplied from the supplying unit to the charging unit. A determination unit determines whether the battery is continuously charged. The setting unit sets the supply current to a value larger than a settable minimum value regardless of the temperature of the battery when the charging unit starts charging the battery on the basis of the second electric power, and reduces the supply current as the temperature is higher when the determination unit determines that the battery is continuously charged.