Battery and manufacturing method for battery cover

A battery having a container and a cover for covering an upper surface of said container,

• said container having vertical side and end walls and a positive conductor post and a negative conductor post in said container,
• said cover having side and end walls in alignment with said side and end walls of said container, an electrolyte filling part extending upward and in a direction between the end walls of said container, a first top wall extending between said side walls of said cover and one of said end walls of said cover in substantial alignment with an upper end of said electrolyte filling part, a second top wall extending between said side walls of said cover and the other of said end walls of said cover intermediate said upper surface of said container and said upper end of said electrolyte filling part, an intermediate wall extending between said end walls of said cover and interconnecting an end of said first top wall with an end of said second top wall, and a pair of conductor tab terminals,
• said intermediate wall having a projecting portion extending around one end of said electrolyte filling part, and outwardly extending portions extending from opposite ends of said projecting portion of said intermediate wall to said side walls of said cover, one end of each of said conductor tab terminals projecting from said intermediate wall at the opposite sides, respectively, of said projecting portion at positions above said second top wall, and the other end of each of said conductor tab terminals extending in said cover for connection to said positive and negative posts, respectively.