Forum Discussion
jrnymn7
Jun 21, 2015Explorer
Yes, I'm wondering if either controller will effect the others performance... not so much during the huge "bulk" of the charge, while in bulk, but especially in abs. Obviously one would take over, if the voltages were even slightly different, so this could skew overall results of how many Ah's got to the bank.
I've watched the pm4b and vec do a little dance, deciding who will lead. Eventually the vec wins out, as it has the higher Vabs setting, ultimately. So even if I set each solar controller to the same Vabs, I can see them not agreeing, as each controller has its own idea of what 14.4v is. I know the tracer goes to 14.44v at a 14.4v setting, for instance. But what does the solar30 go to at the same 14.4v setting? So I guess I've answered my own question. For daily charging it would make no difference, but for running a side by side test it could very well make quite a difference, if one controller was to drop out early.
I've watched the pm4b and vec do a little dance, deciding who will lead. Eventually the vec wins out, as it has the higher Vabs setting, ultimately. So even if I set each solar controller to the same Vabs, I can see them not agreeing, as each controller has its own idea of what 14.4v is. I know the tracer goes to 14.44v at a 14.4v setting, for instance. But what does the solar30 go to at the same 14.4v setting? So I guess I've answered my own question. For daily charging it would make no difference, but for running a side by side test it could very well make quite a difference, if one controller was to drop out early.
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