Constant-current electrolysis (Electrogravimetry without potential control):

Within this case electrodeposition is carried out through keeping the current constant and applied potential is increased periodically as the electrolysis proceeds.

The apparatus for constant current method generally consist of a 6 V battery as DC source of power, an ammeter and voltmeter to measure a current and applied voltage associatively. The voltage applied to the electrolytic cell is controlled along with a resistor. The cathode is usually cylindrical platinum gauze.