I am not happy with the idea the converter requires more VA as the battery voltage rises, for instance. I can test for that over a longer recharge time from a lower SOC
Confuse yourself ?
Efficiency changes as the charge SOC progresses, but the converter does not need more VA to deliver 40 amps charge than it does to deliver 75 amps charge
How ever, When I get down to 4 amps charging, pf is like 0.546
But when it's charging above 70 amps PF is like 0.768 I remember seeing 0.796 at one point
Watts in versus battery charging amps always changes as the battery fills up
That's true of all switching supplies, and our converter is a switching supply
