Di-(3-diaminopropyl)-viologen (DAPV) was used as a foreign molecule within electrolyte during electrodeposition of MnO 2 (MnO 2 –V) for the first time, wherein, higher oxygen evolution rate induced by DAPV showed increase in surface roughness and porosity. The MnO 2 –V electrode showed a specific capacitance, SC of 229F/g which was about five times higher than MnO 2 without DAPV, MnO 2 –N (48F/g) at the scan rate of 10mV/s. In presence of DAPV, at the MnO 2 /current collector interface, lower contact resistance was obtained from electrochemical impedance spectroscopy measurement. Finally, diminished electrical conduction and interference of ion diffusion caused by residual MnO 2 resulted in decrease of SC with an addition of deposition charges. Sustainable stability for electrochemical supercapacitor electrode was observed in MnO 2 –V by investigating subsequent charge–discharge cycling.