What is a Watch Battery?
A watch battery is a tiny form-factor battery, which is commonly used in such small electronic devices such as wristwatches, hearing aids, laser pointers, keyless entry remote controls, and small pocket calculators. They are also called button cell, silver button cell, or coin cell batteries. A watch battery ordinarily is a single cell with a nominal voltage in the 1.5 to 3 volt range. Considering its extremely small size, a watch battery has an extremely long life. The International Electrotechnical Commission (IEC) has published standard IEC 60086-3, which defines an alphanumeric coding system for all watch batteries. This coding system, consisting of a three to five letter code, is based in part on the electrochemical system used in the battery. The coding system also describes the battery’s diameter and height, and the shape of the battery casing. One of the most commonly used watch batteries is the C-type battery. This 3-volt lithium battery is used not only in quartz watches, but
