Management device and power supply device

A management device comprising:

• a first voltage detection circuit which is connected by first voltage detection lines to each node in a plurality of cells connected in series and detects the voltage of each of the plurality of cells;
• a second voltage detection circuit which is connected, by second voltage detection lines, to each node in the plurality of cells and detects the voltage of each of the plurality of cells;
• first capacitance elements which are each connected between the two first voltage detection lines connected to each cell;
• second capacitance elements which are each connected between the two second voltage detection lines connected to each cell;
• a first charge drawing circuit which draws charge from each node in the plurality of cells, via each first voltage detection line;
• and
• a second charge drawing circuit which draws charge from each node in the plurality of cells, via each second voltage detection line.