When placing the battery on the electric vehicle, pay attention to the stability of the battery. Since multiple batteries are heavy in a box, the impact force during driving will be great. You can place a sponge under the battery box in advance to absorb shock. , and then pad the gap between the top of the battery and the electric vehicle seat with rubber. There will be rubber pads when leaving the factory to ensure the stability of the battery and prevent damage to the battery caused by vibration during driving.