What is the difference between fast charging and slow charging for cars?
1 Answers
Fast charging is high-power DC charging, which can charge the battery to 80% capacity in half an hour. Slow charging is AC charging, and the charging process takes 6-8 hours. Additionally, the two interfaces are structurally different and cannot be interchanged. The following introduces the advantages of fast and slow charging: 1. Fast charging: Fast charging uses DC charging, where the DC charging voltage is generally higher than the battery voltage. It requires a rectifier device to convert AC power to DC power, placing higher demands on the voltage resistance and protection of the power battery pack. The charging current is large, typically ten times or even dozens of times that of conventional charging current. 2. Slow charging: Slow charging at a lower speed not only reduces heat and battery pressure but also benefits the long-term health of the battery.