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A button cell is a small single cell battery shaped as a squat cylinder typically 5 to 25 mm (0.197 to 0.984 in) in diameter and 1 to 6 mm (0.039 to 0.236 in) high — like a button on a garment, hence the name. A metal can forms the bottom body and positive terminal of the cell. An insulated top cap is the negative terminal.

Button Batteries not only provide consumers with high efficiency, excellent performance, they also function as replacement batteries for an array of common and unique applications. Ranging from consumer electronic products to sophisticated medical testing equipment, it can meet the needs of all consumers.