Internal impedance</li></li></ul><li><ul><li>Cell chemistry</li></ul>The voltage of cell is fixed by the characteristics of cell, the so called cell chemistry.<br />Actual voltage appearing in any cell depends on load current & internal impedance.<br />
Rate of chemical reactions increases with temperature.
Affects battery life.</li></li></ul><li><ul><li>Internal impedance</li></ul>Internal impedance determines current.<br />It is affected by electrolyte.<br /> Temp. dependent.<br />Decreases voltage of cell during discharge.<br /> Voltage drop across internal resistance-IR. <br />
<ul><li>Lead acid battery;</li></ul>Invented by French physicist GASTAN PLANTE<br />Oldest rechargeable battery<br />Nominal cell voltage is 2.105v<br />Second lowest energy-to-weight ratio (next to the nickel-iron battery)<br />
<ul><li>Construction; </li></ul>consist of Lead &Lead Oxide <br /> electrodes<br />Which are dipped in Sulphuric<br /> acid <br />Normal Lead acid battery is <br />six cell battery <br />Separators are present in between electrodes <br />