A battery includes: positive and negative electrode terminals at least partially provided outside an outer packaging body; and a current cut-off device placed inside the outer packaging body. The current cut-off device is provided in either one of the positive and negative electrode terminals and cuts off an electric current path between the battery element and the either one of the positive and negative electrode when a pressure in the outer packaging body increases. The battery is provided in the movable body such that the either one of the positive and negative electrode terminals provided with the current cut-off device is placed on a vertically upper side relative to the other one of them. The current cut-off device is placed on the vertically upper side relative to a liquid level of the electrolytic solution.