Running 24v and 12v Solar in parallel???
Just curious what would happen if one was to run two systems, side by side (i.e; in parallel)... 12v/pwm and 24v/mppt? In particular, how would the two charge controllers handle things? Would t...
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When two chargers are on the job and one has a little more overhead than the other, they both still add their amps while they both have some overhead at all, but one does more amps than the other in proportion with how much more overhead it has.
So during absorption (even if that is called "float" by that controller)they will still each do something and the total can be as much as the batts will accept or something less if there aren't that many amps (small arrays, some cloud, late in the day, whatever.
By the time one controller drops out completely, the battery acceptance rate is likely to be low enough that the one controller can do it all anyway.
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The VEC1093 is temp comp so its voltage varies and it could be the higher voltage in winter or the lower voltage charger in summer.
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Once you get going on solar, likely you won't need to equalize very often (shallow cycles to near or true full) so split banking not needed for that. You can do the Es on an opportunity basis with the VEC on shore power, assuming that is every two or three months.
So during absorption (even if that is called "float" by that controller)they will still each do something and the total can be as much as the batts will accept or something less if there aren't that many amps (small arrays, some cloud, late in the day, whatever.
By the time one controller drops out completely, the battery acceptance rate is likely to be low enough that the one controller can do it all anyway.
--------
The VEC1093 is temp comp so its voltage varies and it could be the higher voltage in winter or the lower voltage charger in summer.
---------
Once you get going on solar, likely you won't need to equalize very often (shallow cycles to near or true full) so split banking not needed for that. You can do the Es on an opportunity basis with the VEC on shore power, assuming that is every two or three months.
