Multiple electric vehicles fast charge damage battery affects battery life

The public bought a new electric car for two months. After charging a few times on the roadside fast charging station, the duration and battery power supply dropped significantly. The high-current charging of the fast charging station will cause irreversible damage to the battery, and the charcoal in the snow will solve the urgent needs of the public, but leave a lot of worries.

Mr. Zhang, who had just bought an electric car two months ago, is 40-50 kilometers long because of his work. "When I run a long distance, I can always catch up with the anchor. I can only run for 7-8 kilometers in the fast charge station for only 1 yuan. It helps me a lot." After several times of electricity, Mr. Zhang clearly felt that the electric car had no strength before it was used. "It used to be full of 40 kilometers before it was not a problem. Now it can't even run for 30 kilometers."

In the street repair booth, the reporter saw this fast charging station, as long as a dollar coin can be used to charge the electric car for ten minutes. A newsstand owner told reporters that when the business is good, he can earn forty or fifty yuan a day, and the 600-piece machine will return to this book in less than a month. But talking about how much damage the fast charge has on the battery, the store said, "Occasionally there can be any problems."

Mr. Hao, who has been selling electric vehicles for many years in Nankai Wuma Road, bluntly said: “The fast charging station is just an emergency charging device. It relies too much on the damaged battery. I will remind the buyer before selling the electric car every time.” Deputy General Manager of the Municipal Quality Inspection Institute Sun Yundong explained that the principle of the fast charge station is a large current discharge. A long time fast charge will destroy the chemical substances on the battery board, resulting in a decrease in battery life. The batteries designed and manufactured according to national standards can generally be charged and discharged about 350 times. When the battery is still charged, it will be charged. Some active substances cannot be used effectively, and the battery life will also be affected.

General Manager Sun said that for electric vehicles that are not used for a long time, electricity should be charged and discharged once a month. Otherwise, the self-discharge of the battery will increase the internal resistance of the battery. Second, it should be used to recharge the undervoltage meter and reach the minimum discharge voltage of the battery. The third is that the charger should be used. Over-reliance on the fast charging station will only accelerate the battery loss.