its terminal voltage
the colour of its electrolyte
the level of its electrolyte
its terminal voltage and specific gravity of its electrolyte
1.18
1.15
1.25
1.35
alkaline batteries only
alkaline and solar batteries
alkaline and dry batteries
nickel-cadmium and nickel-iron batteries
water to hydrochloric acid
sulphuric acid to water
hydrochloric acid to water
water to sulphuric acid
the thickness of plates
the distance between the plates
the number and area of plates
the strength of electrolyte