ASSEMBLED BATTERY AND MANUFACTURING METHOD OF ASSEMBLED BATTERY

An assembled battery (1) includes: a holder (20) including a plurality of cell hold portions (21) each having a first surface (21b) and a second surface (21c) facing an opposite side to the first surface and each having a holding hole (21 d), which is a hole penetrating through between the first surface and the second surface, and a connection portion (22) that connects the plurality of cell hold portions to each other; a plurality of cells (10) each having an outside diameter (D3) smaller than an inside diameter (D1; D2) of the holding hole and inserted into the holding hole of each of the plurality of cell hold portions; and an adhesive (30) provided so as to be solidified in a gap between an outer peripheral surface of a part of the cell which is placed inside the holding hole and an inner peripheral surface of the cell hold portion which constitutes the holding hole.