Basic performance of electric vehicles.

1. Speed, speed of electric bicycle 20 km/h (national regulations)

2. The load, the vehicle body and its accessories shall comply with the national quality standards, and the total load capacity shall not be less than 75 kg.

3. Acceleration performance, sufficient battery power. On a straight road, the electric bicycle can start at a maximum speed of 20 km/h, and the maximum driving distance is not more than 8 meters.

4. The gradeability of electric vehicles shall not be less than 7 degrees.

5. The driving capacity shall not be less than 25 km after charging.

6. The service life of the motor shall not be less than 300000 km for brushless motor and 60000 km for brushless motor.

7. The service life of lead-acid battery shall not be less than 300 times under the condition of complete charging and discharging.

8. Stepless speed change.

9. The controller and charger should be intelligent. The controller panel should display the remaining battery power and speed, and should also have basic protection functions, such as undervoltage protection, overcurrent protection, brake power failure, etc.