A battery module comprising: a battery cell including a connection terminal; and a bus bar connected to the connection terminal, wherein the bus bar includes an upright portion extending in a direction in which the connection terminal projects, wherein: the bus bar is configured to be connected by a wire to a connected body that is arranged at a location separated from the connection terminal in an extension direction of the upright portion; and the battery cell is configured to be charged and discharged through the bus bar and the wire; characterized in that the battery cell is one of a plurality of battery cells arranged in a stacking direction of the row of the cells in the module to form a battery cell row; end plates are arranged at two ends of the battery cell row in the stacking direction of the row of the cells in the module; the bus bar is connected to the connection terminal of a first battery cell located at one end of the battery cell row; the bus bar includes an extension that is connected to the upright portion, the extension extending outside an outer surface of the end plate adjacent to the first battery cell in a direction intersecting the extension direction of the upright portion to where a battery module does not exist above the extension; the extension includes a basal end and a distal end, which is arranged at an opposite side of the basal end in an extension direction of the extension, wherein the basal end is connected to the upright portion and the distal end is joined with the wire; a plate member is arranged above the battery cells and includes a through hole opposite to the connection terminal of the first battery cell; and the upright portion is inserted through the through hole. a battery cell including a connection terminal; and a bus bar connected to the connection terminal, wherein the bus bar includes an upright portion extending in a direction in which the connection terminal projects, wherein: the bus bar is configured to be connected by a wire to a connected body that is arranged at a location separated from the connection terminal in an extension direction of the upright portion; and the battery cell is configured to be charged and discharged through the bus bar and the wire; characterized in that the battery cell is one of a plurality of battery cells arranged in a stacking direction of the row of the cells in the module to form a battery cell row; end plates are arranged at two ends of the battery cell row in the stacking direction of the row of the cells in the module; the bus bar is connected to the connection terminal of a first battery cell located at one end of the battery cell row; the bus bar includes an extension that is connected to the upright portion, the extension extending outside an outer surface of the end plate adjacent to the first battery cell in a direction intersecting the extension direction of the upright portion to where a battery module does not exist above the extension; the extension includes a basal end and a distal end, which is arranged at an opposite side of the basal end in an extension direction of the extension, wherein the basal end is connected to the upright portion and the distal end is joined with the wire; a plate member is arranged above the battery cells and includes a through hole opposite to the connection terminal of the first battery cell; and the upright portion is inserted through the through hole. the bus bar is configured to be connected by a wire to a connected body that is arranged at a location separated from the connection terminal in an extension direction of the upright portion; and the battery cell is configured to be charged and discharged through the bus bar and the wire; characterized in that the battery cell is one of a plurality of battery cells arranged in a stacking direction of the row of the cells in the module to form a battery cell row; end plates are arranged at two ends of the battery cell row in the stacking direction of the row of the cells in the module; the bus bar is connected to the connection terminal of a first battery cell located at one end of the battery cell row; the bus bar includes an extension that is connected to the upright portion, the extension extending outside an outer surface of the end plate adjacent to the first battery cell in a direction intersecting the extension direction of the upright portion to where a battery module does not exist above the extension; the extension includes a basal end and a distal end, which is arranged at an opposite side of the basal end in an extension direction of the extension, wherein the basal end is connected to the upright portion and the distal end is joined with the wire; a plate member is arranged above the battery cells and includes a through hole opposite to the connection terminal of the first battery cell; and the upright portion is inserted through the through hole.