ORIGINAL: pdm52956
I have a 921 in a 50cc Extra and have noticed that with one battery plugged into the batt/bind port, and a second battery plugged into the data port, it draws from the battery plugged into the batt/bind port while the battery plugged into the data port remains at it's charged voltage.
Does the 921 draw from one battery until it's voltage reaches some minimum value and then draws from the second battery? I expected it to use both batteries at some kind of similar rate but that isn't happening.
Paul
As far as I know, both batteries should draw down equally. I have only used redundant batteries in one aircraft. One was plugged into the Batt/Bind port and one was plugged into a Servo port, however, I have read that you can use the Data port, as well. Both of my batteries were 6v NiMh and they drew down equally. The voltages for both batteries should be the same.