Alkaline batteries are a type of disposable battery commonly used in household devices like remote controls, toys, and flashlights. They are made with a chemical reaction between zinc and manganese dioxide, which produces electrical energy. Alkaline batteries are known for their long shelf life and ability to provide a steady voltage over time. These batteries come in various sizes, including AA, AAA, C, and D, making them versatile for different applications. Unlike rechargeable batteries, alkaline batteries are designed for single use and should be disposed of properly to minimize environmental impact.