A charging device for a storage battery includes: a charging power source for supplying electric power to a storage battery; a charging electric power detecting device adapted to detect electric power charged to the storage battery; a full charge determining device adapted to make a full charge determination based on a detected value of the charging electric power detecting device; and a charging controlling device adapted to conduct charging control by charging the storage battery until the full charge determination is made, stopping charging when the full charge determination is made, restarting charging after a prescribed time period elapses from the stop of charging, and continuing charging until the full charge determination is made again. The charging device further includes a temperature detecting device adapted to detect a temperature of the storage battery; and a stop time setting device adapted to set a stop time based on at least the temperature of the storage battery at the full charge determination. The stop time setting device sets the stop time to be longer as the detected temperature of the temperature detecting device becomes lower.