Nine times out of ten, this is caused by reduced motor efficiency.

When the motor is powered on, it will get hot. In the case of high temperature, the chemical reaction between water oxygen and the permanent magnet will lead to demagnetization, and the working efficiency of the motor will decrease.

In fact, when we ride every day, as long as we control the motor temperature, how to do it? The following points should be noted:

First, maintain good riding habits, avoid high-speed driving, prevent motor overheating;

Second, do not arbitrarily modify the electric vehicle or speed, large current drive can also easily lead to high temperature demagnetization of the motor;

Third, when the electric car is not used, try to put it in the underground garage or shed. Avoid exposure to the sun and rain, and try not to wade in water when riding;

Fourth, check the state of the motor regularly, whether there is a crack, whether there is rust at the rotating shaft, if it is found to be treated as early as possible, you can remove rust or oil seal;

Fifth, when buying electric vehicles, do not be cheap, do not buy inferior or refurbished products.