A small electricity storage pack is provided. An electricity storage pack (10) includes an electricity storage module (13) having a plurality of power storage elements (27), a first voltage signal wire (21) through which signals regarding voltages of the power storage elements (27) in the electricity storage module (13) are transmitted, and a base member (11) on which the electricity storage module (13) is placed and that has a holding portion (20) for holding the first voltage signal wire (21), in which the first voltage signal wire (21) is routed in a space (49) located between the electricity storage module (13) and the base member (11).