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Old 05-23-2011, 05:49 PM   #1
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1962 22' Safari
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kansas city , Missouri
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Isolator? charge line ?

I need some advice:
how hard is it to add a 12v DC charge line from TV to TT, or is it all ready in the 7 way?
Any recommendations on an isolator, how to's and size, links? diagrams?
locatin?

We have a 02' Doge Ram Diesel it has 2 start batteries
1962 Safri 22ft.

Thanks to all that have helped with our baby.
Indy
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Old 05-23-2011, 06:04 PM   #2
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7-Way Tester

I use this:



How it works:

Tow Ready 7 Way Trailer Connector Tester Review Video | etrailer.com

There's a nice video.

Gary
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Old 05-23-2011, 06:13 PM   #3
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Quote:
Originally Posted by indy View Post
I need some advice:
how hard is it to add a 12v DC charge line from TV to TT, or is it all ready in the 7 way?
Any recommendations on an isolator, how to's and size, links? diagrams?
locatin?

We have a 02' Doge Ram Diesel it has 2 start batteries
1962 Safri 22ft.

Thanks to all that have helped with our baby.
Indy
A charge line is already built into the trailer.

It's a "blue" wire.

Andy
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Old 05-23-2011, 06:15 PM   #4
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1979 23' Safari
1954 29' Liner
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Indy,

The seven wires are:

tail and running lights
right turn/brake
left turn/brake
electric brakes
ground
backup lights
charge line

Bill

Quote:
Originally Posted by indy View Post
I need some advice:
how hard is it to add a 12v DC charge line from TV to TT, or is it all ready in the 7 way?
Any recommendations on an isolator, how to's and size, links? diagrams?
locatin?

We have a 02' Doge Ram Diesel it has 2 start batteries
1962 Safri 22ft.

Thanks to all that have helped with our baby.
Indy
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Just my personal opinion
1973 Dodge W200 PowerWagon, 1977 Lincoln Continental, 2014 Dodge Durango
1979 23' Safari, and 1954 29' Double Door Liner Orange, CA

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Old 05-23-2011, 07:06 PM   #5
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On my last two TVs the charge line was only active when the key to the TV was on. This prevents the trailer from draining the TV battery when parked.
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Old 05-23-2011, 07:55 PM   #6
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2008 27' Classic FB
Burkburnett , Texas
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If the TV was built with a towing package, it most likely has a battery isolator for the reason previously mentioned. If using a volt meter or test light to verify your charge line, the ignition must be on. On my earlier Mopar, the isolator was a diode block mounted on the firewall. On the current Ford it is a relay located in the engine compartment fuse box. The output from the isolator is often protected with a fuse. All 7-pin trailer connectors should include the charge line. If you don't see 12v at the 7-pin socket with the ignition on, check your TV owner's manual for the location of the relay and fuse.
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Old 05-23-2011, 09:20 PM   #7
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1962 22' Safari
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kansas city , Missouri
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Thanks for the help all.
will test as stated above.

be safe

Indy

P.S.
The axle is on T.Y. Andy
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