Questions and Answers About Silver Watch Batteries   What is the letter "S" in the name of Watch Batteries?   The IEC code "S" in the name of a battery means that it is a Silver Oxide Battery.   What are Silver Oxide Batteries used for?   The most common use is watch batteries. Since Silver Oxide batteries discharge very slowly, they are ideal for watches, in which these batteries can work for some three to five years before discharging. But there are other uses, mostly for custom-made devices. Army and Navy use specialized Silver Oxide Batteries. Some torpedoes and Alfa class submarines use custom-made Silver Oxide batteries.   Are Silver Oxide Batteries harmful to the environment?   Potentially, yes. Most Silver Oxide batteries are still made with Mercury. But, on the plus side, these batteries are recyclable and, due to their valuable Silver content, recyclers are never in short demand.   What is the advantage of Silver Oxide Batteries as Watch batteries?   Silver Oxide Batteries produce a charge that last some 3 to 5 times that of Alkaline batteries of the same size. They are also recyclable. Home Page  |  Interesting Facts

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