DISCHARGE CONTROLLER

Remaining capacity calculation section (110) calculates remaining capacities for each of cells (300-1) and (300-2) connected in parallel with each other, and control section (130) stops, after starting discharge of cells (300-1) and (300-2), discharge of one of cells (300-1) and (300-2) whose remaining capacity calculated by remaining capacity calculation section (110) has become equal to a threshold value stored in storage section (120).