ZEUS alkaline batteries are manufactured in various sizes---AA, AAA, C, D, and 9 volt---to suit their application and needs. They are free of mercury and cadmium, which make them non-toxic and environmentally friendly. Alkaline batteries are a smart choice because they last a long time, perform well at high and low temperatures, and have a long storage life. They can be stored at room temperature for two years and still retain 90 percent of their original capacities. ZEUS alkaline batteries are high performance---designed with high current and large capacity.