This automotive training aid is an OEM high voltage battery pack from a Toyota Prius II designed specifically for safe educational use. The trainer includes 28 Ni-MH battery modules, current sensor, system main relays (including a soft launch relay), and battery ECU for realistic monitoring and control simulations. The system is completely de-energized, ensuring no live high-voltage is present, making it safe for student operation. The integrated service plug and visible internal wiring enable learners to study battery management systems in detail without risk.