I purchased my Dynon 180 and back-up battery about 2.5 years before it was evern installed and running in my RV-9A. We don't have many hours on the plane, and I have noticed that battery doesn't work, or at least I don't think it does. Unless there is power to my avionics master (where the Dynon is wired), I cannot get it to turn on with the "left button" push, nor will it stay on when I power everything down.
Furthermore, on turning the system "on", the Emergency battery shows 12 volts but quickly degrades to less than 10 (90 seconds) and then hovers around 8 or 7 for several minutes.
So, do I just need to replace it?
And my "internal battery" always shows 0 volts--how do I know if I even have an internal battery or not?
Thanks,
Dahugo
Furthermore, on turning the system "on", the Emergency battery shows 12 volts but quickly degrades to less than 10 (90 seconds) and then hovers around 8 or 7 for several minutes.
So, do I just need to replace it?
And my "internal battery" always shows 0 volts--how do I know if I even have an internal battery or not?
Thanks,
Dahugo