Abstract: A battery having a filling part and a pair of tab terminals on a convex portion of an upper surface of a cover so as to enable a connecting operation by mounting a receptacle housing of faston terminal type, and a manufacturing method for the cover for use in the battery. [1] A battery, in which projecting ends of the pair of tab terminals are located with the filling part positioned between them and are projected in the same side in a longitudinal direction so that the projecting ends are positioned on an upper surface of the cover.