1 Not all of them.
2 On the impact of the battery, fast charging speed, high current charging, heat and other reasons will have a certain impact on the battery. Through more than 6 years of after-sales communication with car companies, the following conclusions are drawn, fast charging batteries have losses, but they are much better than imagined.
3 Often fast charge not for a period of time, with slow charge full, conducive to the battery balance voltage, help to maintain the overall output power. The balanced battery is to charge the charging pile with weak current after the battery is full, so that the proportion of the battery voltage difference becomes smaller, otherwise the battery voltage is different will affect the overall effect. In addition, if you often use slow charge, you can occasionally use fast charge, which should be able to better activate battery activity.