Holy moly that's some engineering right there!it's almost ready one part I need to add is volt meter to the input from battery to buck. I have a safety cut off set to 15..1v and I do not want to change the installed board that is volt and amp metering the buck converter to st16e or st16s.
This is where my original question was coming from. Thanks.I just one huge thing I may have left out the micro usb port on the bottom of the st16e or st16s . That is never to be used when you are using or have attached this alternative power source for the yuneec controller that I am developing.