Fuel cell system

A fuel cell system comprising:

• a fuel cell and a secondary battery used as power sources for a power supply target object;
• and
• one or more processors that execute computer-executable instructions stored in a memory, wherein the one or more processors execute the computer-executable instructions to cause the fuel cell system to:
• control driving of the power supply target object,
• determine whether a predetermined condition required for activation of the fuel cell is satisfied,
• permit a battery-driven mode, in which the power supply target object is driven using only the secondary battery, in a case where the predetermined condition is satisfied, and
• prohibit the battery-driven mode in a case where the predetermined condition is not satisfied,
• wherein the one or more processors cause the fuel cell system to:
• execute a maintenance control of the fuel cell in a situation where the power supply target object is not in operation, and record a control history;
• and
• determine that the predetermined condition is not satisfied in a case where the fuel cell is to be activated from an operation-stopped state in a situation where the power supply target object is not in operation and the control history includes a failure history.