button cell
A button cell is a compact, disc-shaped power source that revolutionizes portable electronics with its miniature yet powerful design. These small energy powerhouses typically measure between 5 and 25 millimeters in diameter and 1 to 6 millimeters in height, making them ideal for small electronic devices. Button cells utilize various electrochemical systems, including silver oxide, lithium, alkaline manganese, and zinc-air technologies, each offering specific advantages for different applications. The cells consist of a cathode, anode, and electrolyte sealed within a metal casing, designed to provide stable voltage output throughout their operational life. These batteries excel in powering devices such as watches, hearing aids, calculators, medical devices, car key fobs, and various small electronic instruments. Their long shelf life, typically ranging from 5 to 10 years, combined with their reliable performance and leak-resistant design, makes them an essential component in modern portable electronics. Button cells maintain a consistent voltage output throughout their discharge cycle, ensuring stable device operation until the battery is depleted.