Charging Your RV Battery With Your Towing Vehicle

Question

Question:

WIll this unit charge the trailer battery while hooked up to a running tow vehicle?

asked by: Mark T

0

Expert Reply:

No, the Progressive Dynamics RV Power Control Center with AC/DC Panel and Converter/Smart Charger - 35 Amp # PD4135K is for converting AC/DC power sources to run things in your RV and to help charge your RV's battery.

What you'll need instead is DC to DC battery charger like the Redarc In-Vehicle BCDC Battery Charger - Single Input - DC to DC - 12V/24V - 12 Amp Item # RED96FR. You'll also want to use a fuse kit to ensure your equipment is all protected - 30-Amp MIDI Fuse Kit for Redarc In-Vehicle 12-Amp BCDC Battery Charger Item # RED86FR.

expert reply by: Kevin C

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Answer 1

I attached a wiring diagram for the Redarc BCDC part #RED96FR for you to check out to show you where everything needs to wire but I also attached a link to the install instructions for you to check out as well.

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Answer 2

Yes, you'll be able to use the 12v feed from your tow vehicle via the 7 way connector to power the Redarc In-Vehicle BCDC Battery Charger - Single Input - DC to DC - 12V/24V - 12 Amp #RED96FR; this is the recommended installation of this unit and…

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Answer 3

Whether you attach the 12 volt circuit from the 7-Way to the battery or run a cable from the vehicle battery to the trailer battery you will likely only be able to maintain the charge level on the trailer battery but not up-charge it. The issue is…

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Answer 4

Yes, a battery isolation solenoid would allow you to cut the power from your start battery when the ignition is off, but wiring it to only cut the power to 7-way on the rear of your Ram could be a bit tricky. You wouldn't want to kill everything…

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Answer 5

The amperage rating of the battery charge line circuit which is run through the trailer connector will be based on the vehicle as not all are the same. That said, most trucks can handle up to 40 amps. If you see yourself exceeding this rating or your…

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Answer 6

I apologize for any confusion but you do need to run the additional wire you mentioned when installing the Redarc In-Vehicle BCDC Battery Charger part #RED96FR. The circuit that runs to the ignition is what turns the charger on when the vehicle is…

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Answer 7

I do have an option for you but a battery charge line run through the trailer connector is only going to be able to provide a trickle charge for the battery. If you are using the battery for a winch, you'll need a lot more than a trickle charge…

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Answer 8

In regards to charging a battery/batteries in an enclosed trailer, the best way is to use DC current from the tow vehicle with a device like the Redarc In-Vehicle BCDC Battery Charger part #RED96FR.

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Answer 9

Yes, you can but please keep in mind that this is not the most efficient way for charging a depleted battery. However, for maintaining a charge on a battery while you are driving you can use the 7-way connection such as the Optronics 7-way, #A7WCB…

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Answer 10

In order to determine the correct roof vent, measure where the vent opens. The standard trailer roof vent opening is roughly 14-1/4" x 14-1/4" and have roof vents that measure 14" x 14". To pick the correct cover, you will also…

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Answer 11

Since your vehicle does have a smart alternator you do need to run a wire from the Redarc #RED96FR to the ignition. I also attached a diagram that shows how this installs on a Lithium setup like you have.

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Answer 12

I checked with Curt and they do show the Curt Trailer Hitch Receiver part #C13233 as a fit for a 2022 Volvo XC90 All Models which includes the Recharge.

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