Batteries Duracell size 9V - universal alkaline batteries, which will become a reliable power source for frequently used devices that require additional power. Alkaline Duracell batteries are available in sizes AA, AAA, C, D and 9V. Due to the special technology of Duralock, unused Duracell batteries can hold a charge up to 5 years when stored under normal conditions. With these batteries you can completely rely on your device. Duracell batteries are the best choice if you are looking for a reliable and durable power source for commonly used devices, such as motorized toys, flashlights, portable game consoles, remote controls, CD players, etc.