冬天续航下降，先看温度和行程结构：别用一段短途判断电池衰减

Displayed range, trip consumption and long-term usable battery capacity are different measures. A cold short trip does not by itself quantify degradation. Keep several days of temperature, distance, charge, parking, preconditioning and HVAC records, separating short journeys and parked energy use. Use supported departure scheduling and charging practices from the correct manual; do not impose one charge target on every battery. Preserve necessary heating and demisting. Persistent unexplained changes under comparable conditions, warnings or charging problems deserve assessment using the vehicle's accepted diagnostic process. A single range screenshot in different weather is insufficient evidence.