How many kilowatt-hours does a 400km new energy vehicle need for charging?
1 Answers
400km new energy vehicles require 60 kilowatt-hours for charging. Charging method: After the electric vehicle battery is discharged, direct current is passed through the battery in the opposite direction of the discharge current to restore its working capacity. This process is called battery charging. During battery charging, the positive terminal of the battery is connected to the positive terminal of the power supply, and the negative terminal of the battery is connected to the negative terminal of the power supply. The charging power supply voltage must be higher than the total electromotive force of the battery. There are two charging methods: constant current charging and constant voltage charging. Charging system structure: Charging stations can be divided into four sub-modules according to their functions: power distribution system, charging system, battery scheduling system, and charging station monitoring system. Charging stations generally provide three charging methods for vehicles: normal charging, fast charging, and battery replacement. Normal charging is mostly AC charging, which can use 220V or 380V voltage. Fast charging is mostly DC charging. The main equipment of charging stations includes chargers, charging piles, active filtering devices, and power monitoring systems.