BATTERY TEMPERATURE CONTROL SYSTEM

A battery temperature control system, maintaining a temperature of a battery mounted on an electric vehicle within a target temperature range while the electric vehicle is stopped, includes: an environment estimation unit configured to estimate an environment in which the electric vehicle is stopped; a reference temperature setting unit configured to set a reference temperature from a plurality of pieces of temperature information based on the environment estimated by the environment estimation unit; a battery temperature transition prediction unit configured to predict a temperature transition of the battery based on the reference temperature; and a battery temperature adjustment unit configured to adjust the temperature of the battery based on the temperature transition of the battery.