Recently, a video has gone viral showing a new energy vehicle suddenly emitting smoke while undergoing DC fast charging at a public charging station, sparking widespread concern. In the footage, just moments after the vehicle was plugged into the fast charger, a substantial amount of smoke began billowing from the chassis. The owner, alert to the situation, promptly evacuated, thereby preventing the potential fire from escalating.

Experts explain that during DC fast charging, the power battery operates under high voltage and high current, causing significant heat generation within the battery cells. Older vehicle models or those experiencing battery degradation are particularly susceptible to localized overheating and electrical wiring issues, which could potentially ignite a fire. To mitigate risks, it is advised that during DC fast charging, occupants should not stay inside the vehicle, especially when the battery level dips below 20%, as the danger intensifies.

In contrast, home AC slow charging produces less heat. However, if occupants choose to remain inside the vehicle during this process, it is recommended to keep the windows slightly ajar and avoid using high-power electrical appliances. Prior to charging, a thorough inspection of the charging port and equipment is crucial, and preference should be given to certified charging stations. Should a burning odor or smoke be detected during charging, the emergency stop button must be pressed immediately, and all occupants should vacate the vicinity of the vehicle. Charging should be avoided in extreme heat, during thunderstorms, or at charging stations that have been flooded.