The serial number for the DJI Air 2s is located on the battery. To find it, remove the battery from the drone and look on the underside. The serial number is printed in minor characters and is typically between 12 and 15 digits long. If you have difficulty finding it, you can consult the user manual for more information. Knowing the serial number of your drone can be helpful if you need to register it with the FAA or file a warranty claim.