Key Takeaways QuantumScape reported $12.8 million in customer billings during Q3, marking early commercial activity.Billings to Volkswagen's PowerCo highlight real-world progress in joint solid-state battery programs.The metric reflects automakers' engagement and a shift from R&D toward QuantumScape's licensing model.QuantumScape Corp. (QS) recorded customer billings of $12.8 million in Q3. That number might be small, but it marks a turning point for the company. For years, investors watched development mil ...