We created a 5x5 seawater battery system to test voltages across multiple pHs and concentrations of NaCl. Concentration ranges go from 0g/L to 32g/L (near saturation) and the pHs range from 3 to 11. We used copper and magnesium electrodes to test the voltages in each cell and got some results we didnt' expect. With seawater being a better conductor than distilled water according to everything I've read, we expected the higher voltages to be seen on the more concentrated cells. Instead, the highest voltage potential we got was on the distilled water with a pH of 3.0. Why would we not see a definite increase in voltage from fresh to more concentrated saltwater even across the same pH?