Button batteries, also called button batteries, refer to batteries that resemble a small button, generally larger in diameter and thinner (compared to cylindrical batteries such as AA batteries such as size AA batteries on the market). The appearance of the battery is divided. The equivalent battery is classified into a cylindrical battery, a square battery, and a special-shaped battery.
The button battery looks like a small button, with a larger diameter and thinner thickness. Most coin-cell batteries are non-rechargeable primary batteries, and their power capacity and available power are smaller than ordinary dry batteries. The button battery has the characteristics of light use, small size and environmental protection.
Button batteries are generally used as a backup power source for various electronic products, such as computer motherboards, electronic meters, electronic dictionaries, electronic scales, remote controls, electric toys, pacemakers, electronic hearing aids, counters, cameras, etc.