Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-24-2014, 10:51 AM   #1
2 Rivet Member
 
Norm excella's Avatar
 
1971 31' Excella 500
Many , Louisiana
Join Date: Sep 2014
Posts: 26
Trailer plugged to tow vehicle

Without a battery hooked up in my airstream, what should I expect to have power from my truck when the 7 way plug is connected?


Norm

Sent from my iPhone using Airstream Forums
__________________

__________________
Norm excella is offline   Reply With Quote
Old 09-24-2014, 11:14 AM   #2
Rivet Master
 
richw46's Avatar
 
2006 23' Safari SE
Lexington , Kentucky
Join Date: Dec 2012
Posts: 2,175
Images: 6
Since there is no battery in the box, I would expect that nothing in the trailer would have 12vdc power.
__________________

__________________
-Rich

Rich & Yvonne
2006 Safari SE -Dora-
2004 4Runner SE

richw46 is offline   Reply With Quote
Old 09-24-2014, 11:44 AM   #3
Rivet Master
 
ALANSD's Avatar

 
1966 26' Overlander
Woodstock , Georgia
Join Date: Feb 2002
Posts: 8,462
running lights
__________________
1966 Overlander
AIR #005
Please visit our blogs and web pages:
OUR AIRSTREAM PASSION! BLOG
RESTORING AN AIRSTREAM
Our AIRSTREAM and TIN CAN TOURIST Rallys
ALANSD is offline   Reply With Quote
Old 09-24-2014, 12:01 PM   #4
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,811
Images: 12
The exterior light are powered from the truck and have nothing to do with the trailer battery.

You should have all 12 volt functions in the trailer because the 12 volt feed from the truck goes to the common positive terminal in the distribution panel. That said do not attempt to turn on much more than one light at a time as the wire coming from the truck is too small to support a heavy current draw.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 09-24-2014, 12:38 PM   #5
Patriotic
 
Chuck's Avatar

 
1973 23' Safari
North of Boston , Massachusetts
Join Date: May 2002
Posts: 4,533
Images: 260
...and it depends on the truck, too.
On my Dodge, the +12v charge line is always hot, whether the truck is running or off. This feeds the 12v circuits in the trailer, so everything should work.
I've done this purposefully to get a "boost" toward the end of a boondocking outing, when the trailer battery is getting weak, lights are dim....plug in to the truck, and "poof"--lights brighten up.
Just know, you're draining your tow vehicles battery when you do this.

Other makes/models don't leave the +12v hot, unless the vehicle is running.
__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
Chuck is online now   Reply With Quote
Old 09-24-2014, 01:29 PM   #6
4 Rivet Member
 
Bk Yd Safari's Avatar
 
2008 20' Safari
Tunnel Hill , Georgia
Join Date: Aug 2011
Posts: 291
Images: 3
sorta related??? if I have a dead battery on the tv and fully charged batteries on the trailer can I plug the trailer into the tv and jump start the tv?
__________________

Remember its not the destination, but rather the journey.... its what's in the middle that matters the most!
Bk Yd Safari is offline   Reply With Quote
Old 09-24-2014, 01:33 PM   #7
Moderator
 
DKB_SATX's Avatar

 
2017 26' Flying Cloud
1976 Argosy 28
Alamo Heights , Texas
Join Date: Aug 2006
Posts: 6,401
Images: 1
Blog Entries: 7
Quote:
Originally Posted by Bk Yd Safari View Post
sorta related??? if I have a dead battery on the tv and fully charged batteries on the trailer can I plug the trailer into the tv and jump start the tv?
You might get a little assistance for a weak battery that can barely turn the truck over, but if the truck battery is really dead, the charge line through the umbilical wouldn't have the capacity to help start the truck even if there's not an inline diode that prevents backfeeding to the truck.

You'd do better removing a battery from the trailer and hooking up to the truck with jumper cables.
__________________
ó David

Zero Gravitas ó 2017 Flying Cloud 26U | Il Progetto ó 1976 Argosy 28 Center Bath | WBCCI# 15566

He has all of the virtues I dislike and none of the vices I admire. ó Sir Winston Churchill
DKB_SATX is offline   Reply With Quote
Old 09-25-2014, 10:35 AM   #8
Rivet Master
 
richw46's Avatar
 
2006 23' Safari SE
Lexington , Kentucky
Join Date: Dec 2012
Posts: 2,175
Images: 6
Trailer breakaway brakes won't work if there's no charged battery connected; right? That would be a little dangerous.

I knew the exterior trailer lights would work, I thought he was asking about the interior 12v usage. To tell the truth, I'm surprised that anything would work on the inside with no battery in the circuit. I learned something today.
__________________

__________________
-Rich

Rich & Yvonne
2006 Safari SE -Dora-
2004 4Runner SE

richw46 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
Plugged or Un-plugged in the Driveway clancy_boy Winterizing, Storage, Carports & Covers 25 10-02-2017 02:14 PM
Tow Vehicle/STOW Vehicle for Full-Timers Foiled Again Full-Timing 13 06-28-2014 01:55 PM
'feedback' to T.V. when plugged into trailer. NJtoNC Towing, Tow Vehicles & Hitches 5 06-21-2010 10:12 AM
Question - Keeping Trailer Plugged In kamadeca Electrical - Systems, Generators, Batteries & Solar 5 05-08-2006 01:28 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:34 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.