Alkaline batteries are a type of disposable battery commonly used in household devices like remote controls, toys, and flashlights. They are known for their long shelf life and ability to provide a steady voltage output, making them reliable for everyday use. Alkaline batteries typically contain zinc and manganese dioxide as their main components. These batteries operate through a chemical reaction between the zinc and manganese dioxide, which generates electrical energy. They are available in various sizes, such as AA, AAA, C, D, and 9V, catering to different devices. While they are convenient, alkaline batteries should be disposed of properly to minimize environmental impact.