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A Look At Cell Formats

A Look at Cell Formats

Early batteries of the 1700s and 1800s were mostly encased in glass jars. As the batteries grew in size, jars shifted to sealed wooden containers and composite materials. There were few size standards, except perhaps the No. 6 Dry Cell named after its six inches of height. Other sizes were hand-built for specific uses. With the move to portability, sealed cylindrical cells emerged that led to standards. In around 1917, the National Institute of Standards and Technology formalized the alphabet nomenclature that is still used today. Table 1 summarizes these historic and current battery sizes.