| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery system which supplies stable electric power to a system while efficiently using electricity generation surplus power.SOLUTION: A battery system of this invention includes: multiple battery modules having multiple battery cells; a resistor; a cooler cooling the multiple battery modules; and a control device which controls currents flowing to the cooler and the resistor. The control device increases the electrical power consumption of the cooler and further increases the electrical power consumption of the resistor when the charging state of the battery system is higher than an upper limit value of the usable charging state and the battery system is charged with electric power. |
