BFL wrote:
"IMO your efficiency calculations are questionable and the power figures are unclear."
As I just replied to FLSTC, the numbers have been confirmed. Every other reading I've taken using the trimetric, inverter, and now the kill-a-watt, have all reasonably lined up, (the inverter's watts reading being the least accurate of the three), be it fans, pumps, lighting, whatever. This pm4b-??? is in a class of its own.
I arrived at my 63% efficiency rating this way:
46.5a X 13.9v = 646.35w / .63eff. = 1025.95w / 104.5v = 9.8a
The line voltage rose back up to 121.5 as the overall load decreased.
