What's the matter with the newly bought Easy Parker tricycle running at most 20 yards?

How long has the battery been used? If the new car is a little abnormal and the old battery is normal, there is no need to replace the controller. It is recommended to replace the oil in the gearbox with the oil of a 4-stroke motorcycle, at most 150 ml. The tire pressure should be normal. Can run about 35 kilometers. Because it's too cold. I sell cars, and the battery discharge standard is 10Ah 144 minutes. You can run 40 kilometers in spring and autumn.