e , overall cell reaction consisting of cathode and anode reactions is:
Pb(s) + PbO2(s) + 2H2SO4(aq) ® 2PbSO4(s) + 2H2O(l)
On charging the battery the reaction is reversed and PbSO4(s) on
anode and cathode is converted into Pb and PbO2, respectively Fig 2