Can People Stay in the Car While Charging an Electric Vehicle?
1 Answers
People can stay in the car while charging an electric vehicle, but it is not recommended to remain inside for extended periods. During charging, the car is connected to a high-voltage interface, and the charging voltage is relatively high, making it unsafe for occupants. Although the probability is extremely low, electric vehicles have a certain leakage rate. For safety reasons, it is best not to sit in the car while it is charging. Additionally, if you choose to stay in the car, it is advisable to avoid using the air conditioning, audio system, or video displays, as these may affect the charging current speed, leading to simultaneous charging and discharging. Reasons why charging speed significantly slows down when the battery reaches around 80%: Safety considerations: To enhance charging speed, many modern pure electric vehicle chargers feature fast-charging capabilities, typically reaching 80% in about half an hour. However, this method often employs high currents, which can easily cause circuit short circuits or even overload. To mitigate risks, the battery temperature must be maintained within a safe range. Thus, charging speed slows down noticeably once the battery reaches approximately 80%. Extending battery lifespan: As temperature rises, chemical reactions inside the battery accelerate, and the chemical activity of the battery cells diminishes. This manifests as increased internal resistance, reduced output power, and degraded performance. Therefore, during charging, the speed is reduced around the 80% mark to maintain optimal battery performance by lowering the temperature and slowing internal chemical reactions. Cycle life limitations: Battery lifespan is typically measured in charge-discharge cycles. Lithium-ion batteries gradually degrade with each cycle. After a certain number of cycles, battery performance declines significantly. Excess heat and rising temperatures during charging can also impact cycle life and trigger unwanted side reactions within the battery.
