Battery module which reduces noise on a signal line

A battery module includes: a plurality of cells 100; a current conduction member 34 electrically connecting electrode terminals of the plurality of cells; and a signal line 50 configured to measure capacitance of the plurality of cells, wherein the current conduction member includes a parallel section including two members which are opposite in direction of a current flowing therethrough and are arranged substantially parallel to each other, and a connection section electrically connecting the two members at one end of the parallel section, and the signal line is arranged nearly equidistant from the two members, and extends substantially parallel to the two members to approach the connection section.