Before we answer this question ,first let's understand what is the difference between a cell and a battery fist.The smallest electrochemical unit of a battery is called a cell. The cell does not have a complete container or contacts ready for use and is usually connected to neighbouring battery cells by means of soldered contacts.

Unlike a cell, it is easy to recognize a battery by its completed container that is equipped with contacts that are ready for use. Additionally, the container bears the manufacturer’s name clearly printed on it, the name of the type, the battery voltage, etc.

How is the battery constructed?

A 12V starter battery contains six individually separated cells that are connected in series in a polypropylene container. Each cell contains an element (cell package) that is made up of a set of positive and negative plates. In turn, these sets comprise lead plates (lead grid and active material) and microporous insulation material (separators) between the plates with opposite polarities. The electrolyte is diluted sulphuric acid. It permeates the pores of the plates and the separators and fills up the voids in the cells. The terminals, the cell connectors and the plate connections are all made of lead. A thermal sealing process is used to permanently bond the battery to its container, providing a superior quality seal for the battery.