The present invention provides a battery that includes: an auxiliary terminal configured such that a first tube is connected to a metallic foil of an electrode of a power generating element through a current collecting connector by being fitted into a battery container through a terminal pull-out through hole of a lid plate, and sealed and fixed to the lid plate by insulating and sealing members; a connecting conductor configured such that one end portion is connected and fixed to an upper portion of the auxiliary terminal, and provided with a terminal through hole on the other end portion; an external terminal having a bolt portion that projects upward from a base portion and inserted through the terminal through hole of the connecting conductor from below; and a baffling member fixed onto the lid plate and restricting rotation of the external terminal by engaging with the base portion of the external terminal.