Batteries have two substances separated by an electrolyte. One of the substances can give up an electron, and then be dissolved in/pass through the electrolyte. Arriving at the other end, they suck back the electron, which creates a shortage of electrons, which breaks another electron off back where it started.
A wet cell has a liquid electrolyte (you could spill it, like most car batteries). A dry cell has a solid or paste electrolyte that won’t run or spill, like the common AA, C, D batteries.
Latest Answers