Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-16-2019, 06:51 PM   #1
4 Rivet Member
 
2013 28' International
Bozeman , Montana
Join Date: Dec 2012
Posts: 461
Images: 3
Disabling new Ford's charging circuit

Has anyone come up with a way to disable the new Ford trucks trailer battery charging circuit? We just had Lewster work his magic on our International with 700 watts of solar, Victron chargers, larger AGM's, etc. I do not want our 2017 F350 to be putting a pretty much unregulated charge on our new batteries.

The newer Superduty's and apparently the current generation F150's do not have a trailer battery charge relay nor a corresponding fuse installed (they are listed in the manual but nether are present on our truck). However, the have some type of trailer control module and do make the charge circuit live when sensing a trailer which I have verified.

Any suggestions on killing off the charge circuit would be appreciated. I'm very concerned with all the auto sensing stuff going on with a newer vehicle that I could create other problems if I attempt some type of mod on the truck. At the moment, I'm thinking my safest bet is to disconnect the positive charge wire on the ubilical cord at the trailer junction box.

Any thoughts or experience with this would be most appreciated.
__________________

HeadWest is offline   Reply With Quote
Old 06-16-2019, 07:32 PM   #2
3 Rivet Member
 
57Vintage's Avatar

 
1958 26' Overlander
Battle Ground , Washington
Join Date: Jun 2013
Posts: 248
Images: 21
Did Lewster install a DC - DC converter or its equivalent? That controls any charging to your trailer batteries from the TV (it is adjusted to only supply within the range your batteries' specs require for charging). Mine system is 2 years old (all purchased through AM Solar) and at that time they used an Orion DC-DC converter, not sure what is the replacement now. Victron has updated a lot of the equipment since I purchased.

Suggest you contact Lew and get clarification.
__________________

__________________
Harold & Rebecca

Our thread:
https://www.airforums.com/forums/f97...er-172124.html
57Vintage is offline   Reply With Quote
Old 06-16-2019, 09:05 PM   #3
2 Rivet Member
 
Paradise , Texas
Join Date: Nov 2017
Posts: 46
Or, just open up the 7 way junction box in the front of your trailer, pull the black wire out of it and cap it. If things are set up properly, you won't have any issues running the jack or breakaway switch with your capacity.this way, you can still pull other trailers with no issues, and no other tow vehicle will damage yours.
Crackerman is offline   Reply With Quote
Old 06-17-2019, 12:28 AM   #4
Rivet Master
 
2018 25' Flying Cloud
Portland , Oregon
Join Date: Oct 2017
Posts: 567
I ran my 7pin cableís charge line through a Victron Omicron to charge our batteries but we have Lithium so the TV line needed boosting and regulating. With AGM I doubt the truck would hurt anything but if you are worried, yes, pull the aux charging line.
daleyocum is offline   Reply With Quote
Old 06-17-2019, 09:59 AM   #5
4 Rivet Member

 
2016 25' Flying Cloud
Holly Springs , Mississippi
Join Date: Sep 2015
Posts: 376
Look in your owner's manual. I bet you will find that there is a fuse that, if removed, will disable the charging circuit. It's one of those square, black "box"-looking fuses.
__________________
Bob

2016 FC 25' FB twin
2013 F-150 Lariat CrewCab 3.5 EB 4X4 3.55 axle
Bob662 is offline   Reply With Quote
Old 06-17-2019, 10:48 AM   #6
WBCCI # 23456
 
2000 30' Excella
Greeneville , Tennessee
Join Date: Jul 2008
Posts: 270
Yes, what Crackerman said.
jimfa440 is offline   Reply With Quote
Old 06-17-2019, 02:31 PM   #7
3 Rivet Member
 
1976 31' Excella 500
Chappell Hill , Texas
Join Date: Sep 2017
Posts: 218
Images: 2
"Or, just open up the 7 way junction box in the front of your trailer, pull the black wire out of it and cap it"

Or put an on/off switch on the trailer's black wire.
tbashin is offline   Reply With Quote
Old 06-17-2019, 03:10 PM   #8
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 6,763
Hi

For whatever reason the fuse locations shown in the owner's manual are incorrect. They have been incorrect for .... errr ... a while now. Just why Ford can't get them right ... no idea.

As mentioned above, better to cap the wire off the 7 pin or put in a DC/DC converter than to mess with the truck.

Bob
uncle_bob is offline   Reply With Quote
Old 06-17-2019, 10:51 PM   #9
4 Rivet Member
 
2013 28' International
Bozeman , Montana
Join Date: Dec 2012
Posts: 461
Images: 3
Thanks all. Yes, Iím going to cap the wire on the 7 pin and leave the truck alone. Seems like my best option and no I donít have a dc/dc converter.
HeadWest is offline   Reply With Quote
Old 06-18-2019, 09:06 AM   #10
Ready-to-Travel
 
pmclemore's Avatar

 
2012 30' International
Walkerton , Virginia
Join Date: Dec 2003
Posts: 2,698
Lewster disconnected the truck's charging capability to my unit - I'd be real surprised if he did not do so for you.

Pat
__________________
--------------------------------------
Somebody, please, point me to the road.

AIR 3987
TAC VA-2
WBCCI 4596
pmclemore is offline   Reply With Quote
Old 06-19-2019, 06:42 AM   #11
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 6,763
Hi

The DC/DC converters are a < $100 sort of option. Putting one in isn't much more work than digging in to disconnect the cable.

Bob
__________________

uncle_bob is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Disabling CO detector elgo Sprinter and B-van Forum 11 09-30-2017 10:35 AM
Disabling electric jack StreamAholic Towing, Tow Vehicles & Hitches 5 04-12-2015 04:35 PM
Trailer charging circuit from TV HowieE Lights - Interior & Exterior 11 04-19-2014 09:26 AM
Charging Circuit woes ralley Mechanics Corner - Engines, Transmission & More... 2 08-28-2006 07:16 PM
Disabling Tongue Jack Cracker Jacks, Stabilizers, Lifting and Leveling 10 11-14-2003 11:32 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:28 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.