Li et al. [26] used cathodic pressure drop of PEM fuel cell to determine the water management characteristics in a fuel cell. They explained that regulating the fuel cell temperature, inlet pressure and the inlet relative humidity were strategies to effectively regulate thewater management characteristics in a fuel cell. Electrochemical impedance spectroscopy (EIS) was used to determine the amount of water in the cell. There was no flooding after the fuel cell was regulated using the three (3) strategies presented by Li et al. [26].