Power distribution apparatus

A power distribution apparatus comprising:

• a first circuit including a first positive-side input portion and a first negative-side input portion connected to a first battery;
• a second circuit including a second positive-side input portion and a second negative-side input portion connected to a second battery;
• a first relay connected to a first negative-side line of the first circuit;
• a second relay connected to a second positive-side line of the second circuit;
• a third circuit that connects the first negative-side line upstream of the first relay and the second positive-side line upstream of the second relay;
• a third relay connected to the third circuit;
• a positive-side connector portion that connects a first positive-side line and the second positive-side line in parallel downstream of the second relay;
• a negative-side connector portion that connects the first negative-side line and a second negative-side line in parallel downstream of the first relay;
• and
• a positive-side output portion and a negative-side output portion connected to respective downstream sides of the positive-side connector portion and the negative-side connector portion.