Quote:
Originally Posted by Bricklayer123
I have a smart alternator. So will be running the IGN wire to to the charger.
One thing I did notice today after going through all the wiring under the trailer.
My wires from the tow vehicle hook up come in and go to a junction box under the trailer then go up and into the trailer about 10’ down. But only one +wire comes back to the battery terminal bar where the solar is connected for charging.
Does the power comming from the tow vehicle in a 7 pin connection go directly to the converter in the trailer ?
When I’m connected I get no change in battery voltage on the meter on the converter.
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The IGN wire is required for all types of alternators as it actually switches the DC-DC charger on or off. This makes sure the dc-dc-charger doesn't drain the starting battery when the engine is not running.
With a Smart Alternator it's necessary to run both positive and negative-, heavy gauge, wires from starting battery to dc-dc charger.
Renogy unit's install manual is pretty clear on wire routing and size based on distance.
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