Recently Konfluence Research Institute extended Kaluza’s theory to include a scalar component. This extension implies a possible gravitational interaction whereby a hitherto undetected force arises in the presence of charged masses. Under a DARPA contract, Konfluence asked HRI to perform a series of experiments measuring the weight of test masses charged to a high voltage, typically several hundred kilovolts. HRI designed and built a custom high voltage divider which presented a minimal burden on HRI’s large Van de Graaff electrostatic machines to accurately measure charge on test masses. The weight of these test masses was measured to high accuracy using custom-made load cells immune to the extremely high charges generated by the electrostatic machines.