Duracell Alkaline is an all-purpose batteries which deliver long lasting power to your everyday devices. With a shelf life of 5 years, you can rest assured they will be ready whenever you need them during storm season or power outages. These batteries are suitable for regularly used devices such as toys, portable radios, remote controls, flashlights and many other. Available in AA, AAA, C, D and 9V sizes. Duracell Alkaline 9V batteries are suitable for the following devices: smoke detectors, microphones, Toys, radios, digital multimeters, medical devices and many more.