The Mark 2 has a rated power of 240W, if the 12V cigarette lighter can stably provide 300W power, it can be connected to the12V to 24V converterto directly power the air conditioner, which has a rated voltage of 24V. However, if the power from the cigarette lighter is insufficient to power the air conditioner, you can consider charging the Mark 2's battery, which has a power of 120W. For detailed operational steps, you can refer to thisblog post.