A new battery configuration technique and accompanying control circuitry, termed a Synergetic Battery-Pack (SBP), is designed to work with Lithium batteries, and can be used as both an inverter for an electric vehicle AC induction motor drive and as a Battery charger, In this paper, the performance of a Synergetic Battery Pack during motor drive operation is compared via computer simulation with a conventional motor drive which-uses sinusoidal pulse width modulation (SPWM) to determine its effectiveness as a motor drive. The study showed that the drive efficiency was compatible with the conventional system, and offered a significant advantage in the lower frequency operating ranges. The voltage total harmonic distortion (THD) of the SEP was significantly Tower than the PWM drive output, brit the current THD was. slightly higher due to the shape of the harmonic spectrum. In conclusion, the SEP is an effective alternative to-a conventional drive, but the real advantage lies in its battery management capabilities and charger operation.