Check the battery power before using. Determine whether the battery power is sufficient according to the mileage of the trip. If the battery is not enough, it should be properly assisted by human riding to avoid under-voltage operation of the battery.

The working condition of the motor should also be checked before using. Start the motor and adjust its speed to observe and listen to the operation of the motor. If there is any abnormality, repair it in time.

Before using electric bicycles, check the lights, horns, etc., especially at night. The headlights should be bright, and the beam should generally fall within the range of 5-10 meters in front of the front of the car. The horn should be loud and not hoarse. The turn signal should flash normally and the steering indicator should be normal. The flashing frequency of the light is 75-80 times per minute; The display should be normal.

Before using, check whether the main fasteners are fastened. For example, the fasteners of the horizontal tube, the riser, the saddle, the saddle tube, the front wheel, the rear wheel, the bottom bracket, the lock nut, the pedal, etc. should not be loose .If the fasteners are loose or fall off, they should be tightened or replaced in time. The recommended torque of each fastener is generally: 18N.m for the handlebar, handlebar, saddle, saddle tube, front wheel, and pedals, and 30N.m for the bottom bracket and rear wheel.