Equivalent weight of Sulphuric acid in the reactions involved in lead storage battery is 

The overall reaction is $\mathrm{Pb}+{\mathrm{PbO}}_2+2{\mathrm{H}}_2{\mathrm{SO}}_4\stackrel{2\mathrm{F}}{\to }2\mathrm{PbSO}+2{\mathrm{H}}_2\mathrm{O}$

2 moles of ${\mathrm{H}}_2{\mathrm{SO}}_4$ is consumed when 2 mole electrons are involved

1 mole of Sulphuric acid(98 g) will be consumed when 1 mole electrons(1F) are involved.