What are the indications of a fully charged cell?

What are the indications of a fully charged cell?
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1 Answer

Answer :

a. The colour of the + ve plates will be dark brown. This can be seen only if the battery has transparent cover. 

b. Voltage per cell will be a 2.15 volts. 

c. Gassing in the will electrolyte will indicate. But the current is splitting up water to H2 and O2. Because the positive and negative plates are fully converted to their original constituents. 
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