The electric vehicle is connected to the commercial charging pile to charge, and the charging current is nearly 100 amps at the beginning. Generally, after charging to 80% of the battery life, the current begins to become smaller, and as it approaches full, the current will become smaller and smaller, and finally the current will be reduced to about twice the degree of slow charging of the family, about ten amps, until it is full. The purpose of this is mainly to consider safety factors, just as the car gradually slows down as it approaches its destination.
The electric car will slow down when it is charged to 80 percent, and the automatic reduction of current is a protective measure for the car's battery