The battery (HHR-250SCHF2X2) refers to a space in a cup, tank or other container or composite container containing an electrolyte solution and a metal electrode to generate electric current, which can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode. As technology advances, batteries are broadly referred to as small devices that generate electrical energy. Such as solar cells. The performance parameters of the battery mainly include electromotive force, capacity, specific energy and resistance.