Suspected Converter Problem

BFL13 wrote:


That sounds normal for a deck mount which can be put close to the batteries. Good.

So the pos and neg should go from converter to battery posts in the two short wires and you should get almost the same voltage at the battery as the converter.

Next, there should be another neg wire from battery neg to Rv frame as the ground. There should be a long pos wire going from the battery to the DC fuse panel.

That would be all normal. You can't lose any voltage going from converter to battery on those two short wires unless there is some loose connection, or else a fuse or DC breaker on the pos short wire that is partially open. Easy to test for and fix.

Your converter will supply the DC fuse panel from across the battery using those battery to fuse panel wires you say do work, so no problem there.

Of course (ahem, ahem)your converter to battery wires go across the battery bank ina balanced way and you don't have an upstream and a downstream battery. And your RV load wires are on the same two posts as the correct posts for the converter's two wires.

I'm guessing your last paragraph was a kind way of saying I should verify those things. I don't think my batteries are "balanced" if that means like the earlier link where you're connected to the positive on 1 batt and negative on the other batt. Mine aren't. But that should be free and easy to fix. I don't think it's germane to my problem but an excellent suggestion for improvement.

As for the load wires, everything is on the same terminal positive and negative posts. Is that a good or a bad thing?

I think I can balance the Batts by moving the neg wire to the other batt but I don't think the neg load wire will be long enough to reach. Simple splice and extend?