My KX3 kit arrived this past week without the he battery retainer board and its associated components. I completed the kit and went on the air without the retainer board. I did not think it would be a problem since I did not have any batteries installed and it appeared to work perfectly on the air. The board arrived today and installed without issue.
My question is:
There is a fairly large piece of shielding material that is installed on the board that is not electrically connected to anything. What is the purpose of this shield?