Electrolysis and Storage Batteries
Local action in a battery is indicated by

both of the listed here
excessive drop in the specific gravity of electrolyte even when the cell is on open circuit
none of the listed here
excessive gassing under load conditions

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Electrolysis and Storage Batteries
Life of the batteries is in the following ascending order.

Lead-acid cell, Nickel-cadmium cell, Edison cell
Nickel-cadmium cell, Edison cell, lead-acid cell
Lead-acid cell, Edison cell, Nickel cadmium cell
Edison cell, Nickel-cadmium cell, lead-acid cell

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