Charging control device, charging control system and charging control method

The invention provides a charging control device, a charging control system and a charging control method. A charge control device (10) according to one embodiment is provided with: a history acquisition unit (50) that acquires history information indicating the use status and charge status of a battery (12); a pattern determination unit (52) that determines, on the basis of the history information, a charging cycle pattern that is closest to the charging habit of the user; a display control unit (56) that controls the display unit and displays a charge completion (SOC), a charge start (SOC), and a lower allowable limit (SOC) corresponding to the determined charge cycle pattern; and a charging control unit (58) that controls the battery in such a manner that the battery is charged in accordance with the changed charging completion (SOC) when the setting is changed in such a manner that the charging completion (SOC) is reduced in response to an operation by a user. Accordingly, deterioration of the battery can