Battery 11
Battery 11 : Two or more primary cells or accumulators electrically connected and employed as a single unit. There are two main types of cell used for the production of electric current, primary cells and secondary cells or accumulators. A primary cell is a voltaic cell for the direct conversion of chemical energy into electrical energy, and consists generally of two dissimilar materials immersed in an electrolyte. It is characterised by the consumption of one of the two materials forming the cell. For all practical purposes, a primary cell is irreversible. A secondary cell or accumulator is a voltaic cell which is reversible and which, after discharge, can be brought back approximately to its initial (charged) chemical condition by passing a current through it in the direction opposite to that of the discharge
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