BATTERY BLOCK

摘要

Batteries (10) are disposed aligned in a specific disposition relationship with the positive electrode sides of the batteries aligned on one side and the negative electrode sides of the batteries aligned on the other side, and the batteries (10) are retained in a retaining part (20). The retaining part (20) has a first retaining part (22), a second retaining part (24), and a third retaining part (26). The first retaining part (22) retains the batteries (10) so as to partially cover one side of the outer peripheral surface in the lengthwise direction of the batteries (10). The second retaining part (24) retains the batteries (10) so as to partially cover the other side of the outer peripheral surface in the lengthwise direction of the batteries (10). The third retaining part (26) retains the batteries (10) so as to cover a region of the outer peripheral surface in the lengthwise direction of the batteries (10) that is not covered by the first retaining part (22) and the second retaining part (24).