Here is a question. My van I'm building will have a 280 amp 24v nations alternator. I would like to increase charge time when driving. My son had bought most of the equipment needed for this build a couple years ago. He had purchased a 24-12 15 victrton isolated dc charger. I didnt realize that until today. I just received my additional victron 24-12-30 today. I can't return the isolated charger as it has been two years so can I use both to charge my batteries from the alternator and if so how do you wire it? Any input would be appreciated. BTW i have a multiplus 3000 24v inverter with 8 100 amp battleborn batteries.
mhaviland56
You are running close the max charge rate of the battery pack already with the new alternator. ( 50 amps max per battery vs 35 rated from the aux alternator )
There is nothing wrong with either approach but honestly you already have your hands full to pull off the aux alternator.
There isn't an easy way to use an isolated charger with a non isolated aux alternator and a multi plus.
I won't say it is not possible but maybe non trivial.
Last year I did a similar system in 48 volt but different brands on a sprinter and even with a lot of planning it took some effort to pull off.
Which alternator controller did you buy with it?
There is nothing wrong with either approach but honestly you already have your hands full to pull off the aux alternator.
There isn't an easy way to use an isolated charger with a non isolated aux alternator and a multi plus.
I won't say it is not possible but maybe non trivial.
Last year I did a similar system in 48 volt but different brands on a sprinter and even with a lot of planning it took some effort to pull off.
Which alternator controller did you buy with it?
One can make isolated into "non-isolated" one by just combining/connecting the GND of the input and the output; so negating the "isolation" between the input and output; you are paying for the "isolation" and you are not using it(like paying extra feature that you are not using); but the unit can still be used etc...
I would suggest, asking Victron to confirm this as well; so you can parallel connect 2 or more of the DC to DC operation etc...
Lee
I would suggest, asking Victron to confirm this as well; so you can parallel connect 2 or more of the DC to DC operation etc...
Lee
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
