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Old 10-29-2014, 09:48 PM   #15
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If I may jump into this please:
I have similar questions.
I have installed a battery line from a 2001 Chev 23 foot Class C to my 2007 Honda CR-V.
The 10 gauge line from the coach (+) battery terminal, connected via a 20 amp circuit breaker, goes to the CR-V (+) battery terminal. The CR-V battery is also protected by a 20 amp circuit breaker.
I have a removable section at the hitch to join both ends of this (+) wire.
Note: I have installed separate brake/signal bulbs installed in the tail lamp housings on the CR-V that connect via the 6 pin trailer plug.
My questions are:
- do I need to install a (-) 10 gauge wire from the CR-V to the coach? If so, can I just run it from the CR-V (-) battery terminal to a clean connection on the frame at the rear of the coach or do I need to go right to the (-) battery terminal on the coach battery?
- if I disconnect the power wire when the CR-V is parked for the night will all be ok?

I plan on installing the Stay-In-play DUO as the CR-V brake system.

Thank you for any suggestions/help.
Ray
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Old 10-30-2014, 04:14 PM   #16
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You can run a # 10 wire from frame to frame. However, that assumes you have a good connection between battery and frame on both vehicles. I have found many times on older cars and trucks that assuming anything is always suspect.
I would also include an ignition off disconnect between vehicles when the tow vehicle is off. That way if your towed vehicles battery is down it doesn't drain your tow vehicle battery.
-Paul R. Haller-
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Old 10-30-2014, 06:01 PM   #17
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Thank you Paul.
Would the following explanation work for the wiring of a relay?
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Old 10-30-2014, 06:55 PM   #18
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Yes this explanation is fine, that said, don't use a Bosch relay in this application... use a Starter relay that's capable of handling more amps.
look here:
311006 Ford NH 12 Volt 4 Post Starter Relay Solenoid for Diesel Engines 2000 | eBay





put this relay in the charge line between the tow vehicle and the + battery lead to the back. Find switched + circuit off the cigarette lighter circuit or other fused ignition on lead and wire that to energize the relay. This relay needs a ground lead too.
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Old 10-30-2014, 06:58 PM   #19
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Hi Paul,
Excellent.
So, the starter relay base would be grounded to the toad?
Will the starter relay have relay numbers as on the Bosch?
Kind regards!
Ray
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Old 10-30-2014, 07:03 PM   #20
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Actually here is a better continuous duty relay.

http://www.ebay.com/itm/SOLENOID-REL...e724df&vxp=mtr



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Old 10-30-2014, 07:11 PM   #21
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In the relay pictured above, there are 2 large contacts. They go to the charge line in and out. The 2 smaller lugs are switched tow vehicle + and the other to tow vehicle ground.
-Paul R. Haller-
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Old 10-30-2014, 07:18 PM   #22
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Thanks again Paul. Off to the store tomorrow to pick up the relay.
Ordered the Stay In Play Duo today so will soon be set up to head South.
Ray
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