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Raymax 3v lithium button battery CR2430 5-pack
The qualities of button batteries include their long lifespan and high capacity. large number of applications, many different applications. The battery's positive electrode is silver oxide, its negative electrode is metal zinc powder, and its electrolyte is either potassium hydroxide or sodium hydroxide. Zinc and silver oxide interact chemically to produce electricity.
Lithium coin battery 3v CR2016 2pcs pack
The button battery needs to be replaced after some time of use, unlike other batteries. The button battery is often pre-assembled on the device and lasts a very long time. Of course, the assumption is that the equipment typically contains a button battery made by the regular manufacturer. It can be well protected and has a long service life because there is little direct contact with the outside world inside.