Ultra‑fast charging (UFC) pushes DC power above 150–350 kW to cut stop times to minutes. We unpack battery chemistries, thermal management, and charge curves; the difference between CCS, NACS, and MCS; and how station design, grid connections, and on‑site storage shape reliability. See real‑world range added per minute, pricing models, peak‑shaving strategies, and the impact on battery life. We also outline route planning for long trips, accessibility considerations, and what to look for in future 400–1000 V architectures.