I have installed Victron Easysolar II GX 48/3000/35-32 with two Pytess batteries E-Box 48100r 5,12kWh all together 10,24kWh capacity.
I have installed 2670kW power from solar panels and when charging batteries from solar everything works as expected.
The problem comes when I am charging from diesel generator Honda EC3800 which is capable of running constant power of 3600 Watts and 16Amps at AC, but my Easysolar or to say its multiplus inside is only charging the batteries with 1200-1300 Watts from generator.
I have checked settings in VeConfigure 3 as well as in Victron connect and in control panel and everywhere the charging current from the AC input is set to 32A so it should allow to draw more current from the gen. but it doesn’t.
Does anyone know the solution to this issue? Would really appreciate.
Best regards
Uroš
Hi,
I think this genset isn’t a pure sinus wave, maybe that’s something to consider?
You could also try again without canbus to bms, just to check.
I’m curious to know what’s the problem here, can you keep us updated please?
Thanks.
I have again checked the settings through the Ve Configure 3 and noticed that I had checked the Weak Ac option and as I have red the instructions this should by default reduce the current from generator by 20%. We have tested now with this new settings and it actually raised the AC power by 20%, but this is still far from the power that the generator can provide, which is 3600 constant power. I have also checked the option DCL (dynamic current limiter) but don’t think this is relevant to the issue…
If you have a pseudo sinus, the multi could give less power than it can deliver in standards conditions. If it works well, go for it.
Thanks for the update, still curious to know.
This explanation sounds right. This genset type is with AVR function so it has some sort of voltage regulation,but I cannot find anywhere what kind of sinus output it generates…We are testing it now and it charges constantly with aprox 1600-1900Watts of AC power so it gives around 7-8 Amps of AC. We left it to charge the battery from 65% to 86% without any problems.
I want to test it with connecting additional loads while charging the batteries to see how it handles. And I will also try to bring up another honda inverter genset like EU22i or EG3600CL with D-AVR to see the diference…
Will also try to borrow a portable oscilloscope to measure the sinus on the AC1 input to see what kind of results I get from different gensets
The Easysolar you list has a Charge Limit of 35A. Default is usually lower than that, so make sure it’s set to 35A. But that’s at Battery V, so you appear to be running near max anyway. By all means add some loads to see how the gen handles them on top of the charge.
If you’re really interested in testing gensets, this (old) article is well worth a read… https://www.victronenergy.com/upload/documents/VE_Marine_generator_test_RVA_07-jan-2008.pdf
Thats a great article. I wasn’t sure about if the max current on the datasheet is for the AC voltage or the battery but after I red your response I went to check again and you’re right, its current for the batery voltage so the power we are getting from our Honda is perfectly fine. Thank you for your reply.
Oh yes! How could I miss that…
Thanks John.