The ZY.Hyisinn Booster module for car charging is a crucial component for anyone looking to use their ZY.Hyisinn air conditioning unit while in a car. By adding the booster module onto the 12V connecting wire between the air conditioning unit and the car, you can transform your 24V DC air conditioning unit into one that is compatible with your car. This means that you can now enjoy the cool comfort of your air conditioning unit while driving and engaging in outdoor activities.