procharger Posted May 13, 2014 Report Share Posted May 13, 2014 What should voltage read and amps read when flying at speed, amps hang around zero or plus one voltage around 13.6 with everything running ?? thanks Link to comment Share on other sites More sharing options...
procharger Posted May 13, 2014 Author Report Share Posted May 13, 2014 I looked at some of the older posts wondering if anything new to report on this subject? Link to comment Share on other sites More sharing options...
CT4ME Posted May 13, 2014 Report Share Posted May 13, 2014 That sounds about like mine. Amps 0 or up/down a bit (more up). Volts 13.5 or so. Link to comment Share on other sites More sharing options...
Anticept Posted May 13, 2014 Report Share Posted May 13, 2014 Voltage is read from bus to ground, and it should be over 13.2 volts to less than 14.3. Heavy loads will lower the voltage because of the voltage drop effect. Amperage is read on the positive battery lead in most aircraft installs, between the bus and the battery terminal. In flight, you want the amperage to be zero or positive. Positive means it is charging, negative means it is draining. On the ground, don't be surprised if there is a slow drain since you don't have a high enough RPM to charge. Link to comment Share on other sites More sharing options...
Roger Lee Posted May 14, 2014 Report Share Posted May 14, 2014 Voltage rad out on most CT's are around 13.6 to 13.9 on the average. The ammeter can bounce between -4 to 12 amps. This is because of the Rotax engine and the Dynon interface. Dynon hasn't figured out yet how to take the noise out of the electrical system. You are really on looking for trends. It should never be always positive or always negative. Normal for most seem to bounce between -2 to + 5. Link to comment Share on other sites More sharing options...
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