Battery voltage detection device, assembled battery management system

An assembled battery management system comprising:

• an assembled battery comprising a plurality of battery modules connected in series, wherein each of the battery modules comprises a plurality of battery cells connected in series;
• a connection member that connects the plurality of battery modules;
• and
• a battery voltage detection device that detects voltages of the battery cells,
• wherein the battery voltage detection device comprises:
• a monitoring section comprising a voltage detector that detects the voltages of the battery cells, wherein the monitoring section monitors the voltages of the battery cells based on a detection result of the voltage detector, and
• a plurality of voltage input terminals connected to the monitoring section,
• wherein each of the battery modules includes a plurality of voltage detection terminals connected to a positive electrode and a negative electrode of each of the modules as well as connecting points of the battery cells,
• wherein a number of the voltage input terminals in one battery voltage detection device is different from the number of the voltage detection terminals in one or a plurality of the battery modules, and
• wherein the battery voltage detection device is arranged in plurals, and the voltage detection terminals are connected to the voltage input terminals without leaving remains.