Electrolysis and Storage Batteries
Sulphated cells are indicated by

the low voltage of the cell on discharge
the decrease of the specific gravity
the loss of capacity of the cell
all of the listed here

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

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

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