Battery control system and vehicle system with battery control system

The present invention enables as large an amount of charge and discharge to be carried out as possible while allowing each battery to complete a target life, without the need to increase the capacity of the battery. According to the present invention, each module includes a circuit breaking section configured to control an energization state and a circuit breaking state of the battery in such a manner that during discharge, the circuit breaking sections of a certain number of modules are sequentially activated to halt discharge from each of the certain number of modules for a predetermined halt time, while an amount of discharge from remaining modules is increased to complement a decrease in the amount of discharge resulting from the halt of discharge from the certain number of modules.