Update to dc/dc converter install
The new Dc/dc converter that goes between the alternator/chassis battery and the lithium batteries needs a starter wire to operate. I am assuming the 18ga wire connects to the top of the battery isola...
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Thanks for your replies. My rig does not have a boost switch. At least not where our Itasca had one on the dash. I’m looking for a wire that is energized with ignition to switch on the DC/DC converter. This is a Renogy 40 amp charger and a D+ wire is required from the alternator for turning on with on-board battery or ignition. “Note: requires wired to turn on DC-DC.” I believe this means that the charger is only is switched on when connected to a switched on ignition. Would attaching the D+ wire to the “boost” turn it on with ignition? Or is that wire also switched and I’m just not aware of that function on our new RV? I noticed the engine battery boost switch is an option. Otherwise would it be the + wire from the engine chassis labeled Ford battery in the photo?
The wiring diagram is unclear about the use of the small wire on the isolator. They label it LG. I don’t know if that means boost. And I’m assuming boost is the switch that allows the batteries to jump the coach battery if that is depleted.
I don’t need another switch for this device. I’m hoping it just charges like the normal alternator charge except protects the batteries from overcharge and the alternator from burning out. I just need to know exactly where to connect the 16-18 ga wire. That is recommended for the D+ connection. I wish there was a diagram that shows exactly where to connect it.
The wiring diagram is unclear about the use of the small wire on the isolator. They label it LG. I don’t know if that means boost. And I’m assuming boost is the switch that allows the batteries to jump the coach battery if that is depleted.
I don’t need another switch for this device. I’m hoping it just charges like the normal alternator charge except protects the batteries from overcharge and the alternator from burning out. I just need to know exactly where to connect the 16-18 ga wire. That is recommended for the D+ connection. I wish there was a diagram that shows exactly where to connect it.
