According to the news from Battery.com.cn, a fire broke out in a residential area in Wuhan City, causing 1 death and 7 injuries. It was suspected that a local electric vehicle was spontaneously ignited during charging. On January 7, the reporter learned that with the increasing use rate of electric vehicles in recent years, how to carry out daily maintenance of electric vehicle batteries has become a topic of concern to everyone. Insiders: Electric vehicle battery failure and line aging are the main cause of spontaneous combustion Electric vehicles frequently appear spontaneous combustion, what are the reasons? On the same day, according to Liu Shifu, who has been operating electric vehicle stores in Zhanggong Road, Zhangzhou City for many years, in general, the cause of self-ignition of electric vehicles is mainly battery failure. Or the line is aging. In daily life, newly purchased electric vehicles generally need to be charged for 12 hours, and then each charging takes only about 8 hours. Some citizens are accustomed to not charging the power after the electric vehicle is fully charged. As a result, it is easy to call the bottle for water shortage and expansion. Self-ignition. In addition, some electric vehicles with a long service life are prone to wear and aging, causing a short circuit and causing a fire. Reminder: battery quality is good or bad, daily maintenance must pay attention to According to reports, under normal circumstances, the battery life is 2 years, beyond the use period, the battery needs to be replaced. So, what is the quality of the battery on the market? Master Liu said that the current battery materials on the market are mainly lead-acid batteries and colloidal batteries, the quality is better than 400 yuan, and the difference is two to three hundred yuan. However, regardless of quality, attention should be paid to routine maintenance. Master Liu said that when charging an electric car, if it still does not turn green when charging for more than 8 hours, it is necessary to go to the store for repair, because it is likely that the battery has a problem. At the same time, for safety reasons, the electric vehicle owner can install a timer on the electric vehicle, and the electric vehicle can automatically stop charging after being fully charged. If you are replacing the battery with an electric vehicle, you should go to the corresponding electric vehicle brand after-sales service department to find a battery that meets the specifications for replacement. In addition, since the fast charger voltage is much higher than the voltage that the electric vehicle can withstand, it is often used to quickly fill the battery or cause the battery to swell, and should be used as little as possible. The fire department also reminded that when the weather is dry or the temperature is high, the electric vehicle should not be placed in the fire room where the combustibles are stored; during the charging process, the charger should not be sealed or exposed, and the charging time should not be too long. GCr15 52100 100Cr6 SUJ2 bearing steel bar GCr15 52100 100Cr6 SUJ2 bearing steel bar SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdthreadedrods.com