In an aqueous acid medium, 4,4’-bipyridine (BPH22+) may give up to five voltammetric reduction peaks, depending on its concentration and the presence or absence of a surfactant. This paper discusses such voltammetric peaks and assigns them to the electrode processes from which they originate. If the voltammetric scan is reversed when the most negative potential in the voltammogram is reached, only three of the previously observed peaks are reversible, depending on the final potential. Also, up to two inverted current peaks tie, reduction peaks) are observed in the scan to positive potentials. Plausible mechanisms accounting for such inverted peaks are put forward in the paper.