Abstract: A battery cover structure to identify the positive or negative poles of a battery has installed with identifiers at the location nearby conducting terminals. The identifiers are made with insulating plastics material in different colors or shapes inserted into the mold for injection. The differential colors or shapes make the identification of battery terminals and eliminate the dangerous of explosion due to error connection.

Abstract: A structure of battery electrolyte container seal comprises a container, a plurality of resilient caps and a plurality of hard plugs; the cap being provided in an opening of the container; the plug in shape of a bead being inserted into a through hole of the cap; a body of the cap being fixed onto inner wall of and fully sealing up the opening of the container to reduce resistance encountered upon opening up the container for easy and rapid opening while assuring of integral sealing of the container.

Abstract: A battery solution vessel structure is provided which consists of several linked bottles. Each bottle has a mouth portion on its top. Below the mouth, a bottleneck provides a connection to bottle body. The bottleneck has an internal surface with an inverted conical contour that is sealed by a cylindrical elastic gland cover, made of a foam material. The diameter of the gland cover is slightly larger than the bottleneck smallest internal diameter for providing a tight seal.