A study on battery-vehicle design interactions was performed jointly by Argonne National Laboratory and Toyota Motor Company. A Toyota Hi-Ace van converted to electric drive was used to model the performance of the vehicle.Power train requirements were calculated on the basis of achieving performance equivalent to that of gasoline-engine or diesel-powered vehicles. Vehicle energy requirements were obtained by integrating the power required to complete a SAE J227a/D cycle. A weight analysis for the conversion was completed as well as a preliminary design to locate the batteries within the vehicle without encroaching upon passenger spaceThe power/energy ratio of the battery was determined as a function of the vehicle range. Specifications for the vehicle and battery for several cases of interest (e.g., gasoline or diesel type acceleration) are given.