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A battery is an electrical device that is employed to convert chemical energy into voltage through electrochemical discharge reactions. These are composed of one or more cells where each cell having an anode (+), the cathode (-) and the solution. The anode and the cathode are preserved to an electric circuit. Batteries are classified into 2 varieties they are primary or disposable batteries and secondary or rechargeable batteries, whereby the primary batteries don’t seem to be reversible whereas the secondary batteries are reversible.
