Isolator? charge line ?

[indy]

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

[Splitrock]

I use this:



How it works:

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

There's a nice video.

Gary

[Inland RV Center, In]

Originally Posted by indy

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

[wkerfoot]

Indy,

The seven wires are:

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

Bill

Originally Posted by indy

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

[azflycaster]

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.

[Silver Goose]

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.

[indy]

Thanks for the help all.
will test as stated above.

be safe

Indy

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