Abstract: A battery device comprises a case, a core pack, a signal unit and a non-volatile memory, wherein the core pack, the signal unit and the non-volatile memory are disposed in the case. The case has a first transmission terminal and a second transmission terminal. The signal unit is electrically connected to the core pack and the first transmission terminal, and is configured to output a voltage signal associated with the state of the core pack through the first transmission terminal. The non-volatile memory is electrically connected to the second transmission terminal, and is configured to receive and store information associate with the core pack through the second transmission terminal.

Abstract: A foam grip fabrication method includes a mold preparation step to prepare a foaming mold having a size reduced to a predetermined foaming ratio, a heating step to heat the foaming mold to a bridging curve temperature, and then to close the foaming mold and to draw the foaming mold to a negative pressure state, a material filling step to mix a raw material to be foamed with a foaming agent and a crosslinking agent and then to inject the foaming material thus obtained into the foaming mold, and a foaming step to open the foaming mold after vulcanization of the molding for enabling a flow of outside air to enter and to cause the molding thus molded to expand and then to put the molding on a tool for cooling and shaping so that a finished product in the desired size is thus obtained.