The EMA's only external power source consists of four 6-volt batteries which never need recharging and which have the same life expectancy as the standard automobile battery. EvGray claims the motor duplicates the power and torque characteristics of internal combustion engines of similar size and weight, and the Federal and State Air Resources Board has granted the inventors a permit to further prove this claim by installing the EMA in test vehicles. Edwin Gray, Sr., president of EvGray, predicts production costs of the EMA will be comparable to present motors and maintenance costs will be far less. Perfection of the EMA motor as a generating source could mean the availability of inexpensive power to underdeveloped nations. He says the engineering and scientific world has known this re-creation is possible but hasn't known how to do it.
Nobody really knows.
Richard B. Hackenberger, Sr., vice-president in engineering for EvGray, explains how the EMA motor system operates. The spikes are transferred to a small control unit, which in turn operates the major motor unit. The electro-magnets are located on both the rotor and stator of the large motor. Attraction and repulsion between the two sets of magnets causes the motor to operate and generate horsepower. To prevent condensation in the main cylinder, a half-pound of air pressure has to be maintained.