Abstract: A charging control system includes: a rechargeable battery; a battery temperature control device; and a controller. The controller includes processing circuitry configured to: acquire a scheduled travel plan of a vehicle; create a charging plan in a case where charging is included in the plan; predict a battery temperature in the plan based on a cooling capacity of the battery temperature control device; and perform a power saving control for restricting a charging output of an external power supply when the temperature of the battery exceeds a predetermined temperature during the charging. The processing circuitry is configured to create, when at least two times of charging are included in the plan and it is predicted that the charging output is restricted by the power saving control in a second and subsequent charging, the charging plan such that a total time required for the charging included in the plan is shortened.