Looking for trusted and durable button-sized batteries? Buy Duracell 309/393 silver oxide button battery from I.T. Megabyte Computers. This battery you can use with the calculator, watches, and so on. This 1.5 volts battery is for single-use purposes.
Like any battery, this one also comes with the safety and security features of Duracell. Made with a silver oxide composition, this battery offers long-lasting and consistent performance.