Button cell - Wikipedia, the free encyclopedia

Button cell - Wikipedia, the free encyclopedia

瀏覽:668
日期:2026-04-24
A watch battery or button cell is a small single cell battery shaped as a squat cylinder typically 5 to 25 mm in diameter and 1 to 6 mm high—like a button on a garment, hence the name. Button cells are used to power small portable electronics devices such...看更多