METHOD OF MANUFACTURING BATTERY

Step (A): Winding a first separator, a second separator, a positive electrode plate, and a negative electrode plate onto a winding core disposed at a first position. Step (B): Moving the winding core away from the first position and disposing another winding core at the first position. Step (C): Cutting the first separator and the second separator wound on the winding core that is moved away from the first position in step (B) at a location on or near the other winding core disposed at the first position in step (B), with the first separator and the second separator being stacked and retained on an outer circumferential surface of the other winding core. Step (D): Winding the first separator and the second separator onto the winding core that is moved away from the first position in step (B) up to a cut edge portion at which the first separator and the second separator are cut in step (C).