Battery connection module, battery module, and battery pack

The invention provides a battery connection module, a battery module and a battery pack, which can control the number of connectors arranged in a connection system of a battery unit and a battery ECU to a minimum limit and can well restrain increase of manufacturing cost. A battery connection module (4) has: a bus bar that connects a plurality of battery cells (31) of a battery cell (3) in series; a flat conductor (5) connected to the bus bar; a battery control board (61) for monitoring the state of the battery unit (3); a first connector (62) to which the flat conductor (5) is connected; and a second connector (63) to which a cable (8) for communicating with the battery ECU (7) is connected, the battery control board (61) has a first end connection part at one end and a second end connection part at the other end, the first connector (62) is a card edge connector connected to the first end connection part, and the second connector (63) is a card edge connector connected to the second end connection part. 一种电