When sourcing used electric trucks, the most critical factor is Battery Health (State of Health - SoH). You should request a diagnostic report showing the remaining capacity, as batteries typically account for 40-50% of the vehicle's total value. Additionally, verify the Motor Power (kW) and Torque to ensure they meet your payload requirements. Check the Charging Standard (e.g., CCS1, CCS2, or GB/T) to ensure compatibility with your local infrastructure, and inspect the Odometer Reading alongside the Total Discharge Cycles to estimate the remaining service life.