RV.Net Open Roads Forum: Will fridge run off tow vehicle on batts on TT?

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Will fridge run off tow vehicle on batts on TT?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Next
Sponsored By:
arcsum68

Northern CA

Full Member

Joined: 04/05/2007

View Profile


Offline
Posted: 03/25/20 12:26pm Link  |  Quote  |  Print  |  Notify Moderator

Simple question, but I cannot seem to find an answer. Every search results in "will my TV charge the batteries".

Normally wouldn't care, but here's the scenario. Just got a new to me TT but I plan to keep the 2x 6volt batteries from my old trailer. To make them fit I need to make some modifications but its going on a trip before I will do that.

So, will the fridge stay powered by the TV on until I get to the site where I can throw the 2 golf cart batteries on the tongue temporarily?

* This post was edited 03/25/20 12:39pm by arcsum68 *


2005 Ford F150 5.4 Super Crew
2000 Nash 24a

wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Offline
Posted: 03/25/20 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

Will there be any battery in the trailer? On propane, they take very little 12 VDC power.


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240


FMCA Forum: www.community.fmca.com/index

Diesel RV Club:http://www.dieselrvclub.org/

2oldman

AZ

Senior Member

Joined: 04/15/2001

View Profile


Online
Posted: 03/25/20 12:33pm Link  |  Quote  |  Print  |  Notify Moderator

Hard to say.. I'd be using a voltmeter to find out. We're all assuming you mean it's running on propane, and that TW means TV.

BFL13

Victoria, BC

Senior Member

Joined: 02/15/2006

View Profile



Posted: 03/25/20 12:37pm Link  |  Quote  |  Print  |  Notify Moderator

The 7-pin will help while your fridge is on propane, but not do enough while the fridge is on 12v if it is a 3-way fridge.

If the fridge is cold already before leaving it will stay cold that day till you get there if you leave the doors closed.

You need a battery in the TT to tow it (it's the law) so the emergency breakaway will work.

With the required 12v battery and the 7-pin, now you can use the 12v mode on the 3-way fridge and it will help keep it colder than without.


1991 Oakland 28DB Class C
on Ford E350-460-7.5 Gas EFI
See Profile for House electronics set-up.

arcsum68

Northern CA

Full Member

Joined: 04/05/2007

View Profile


Offline
Posted: 03/25/20 12:38pm Link  |  Quote  |  Print  |  Notify Moderator

There will be no battery, it needs to go in the Nash that I am selling.

And Yes, TW = Tow Wehicle. LOL, sorry about that.

And it is a 2 way fridge and would be on propane.

ppine

Northern Nevada

Senior Member

Joined: 07/04/2016

View Profile


Offline
Posted: 03/25/20 12:40pm Link  |  Quote  |  Print  |  Notify Moderator

No they won't.

arcsum68

Northern CA

Full Member

Joined: 04/05/2007

View Profile


Offline
Posted: 03/25/20 12:40pm Link  |  Quote  |  Print  |  Notify Moderator

Worst case scenario, I imagine it will stay cold enough as its only a 2 hour trip, as long as I get it nice and cool before we go.

wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Offline
Posted: 03/25/20 12:51pm Link  |  Quote  |  Print  |  Notify Moderator

With no battery in the trailer and only a 2 hour drive, I would absolutely just pre-cool the refrigerator and turn it off.

Or, even better, freeze a couple of quart soda bottles and place them in the refrigerator for the trip.

I would be a little concerned about running the refrigerator directly off the TV with no battery in the trailer-- the refrigerator PC board may not appreciate the voltage spikes. Yes, minor risk, but why risk it at all.

2oldman

AZ

Senior Member

Joined: 04/15/2001

View Profile


Online
Posted: 03/25/20 12:59pm Link  |  Quote  |  Print  |  Notify Moderator

arcsum68 wrote:

it's only a 2 hour trip, as long as I get it nice and cool before we go.
You're good with that. Just be darn sure those 2 batteries are healthy.

Old-Biscuit

Verde Valley

Senior Member

Joined: 06/20/2009

View Profile



Posted: 03/25/20 01:28pm Link  |  Quote  |  Print  |  Notify Moderator

arcsum68 wrote:

There will be no battery, it needs to go in the Nash that I am selling.

And Yes, TW = Tow Wehicle. LOL, sorry about that.

And it is a 2 way fridge and would be on propane.


Federal LAW requires a fully charged functional battery in trailer while towing to activate the Emergency Breakaway----required to maintain voltage/braking for 15 minutes should trailer become disconnected from tow vehicle.

Just saying....you will not be safely towing regardless of distance/time frame


As for fridge...
Tow vehicle '7 pin CHARGE' line is intended to charge/maintain trailer battery voltage while towing.
W/O trailer battery----fridge will not have DC for controls/gas valve because tow vehicle alternator/voltage regulator will not 'see' the fridge DC demand.

Buy a CHEAP 12V battery and toss it in the trailer........!~!


Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
On the Road Debt Free April '07
Off the road still Debt Free Jan. '14

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Next

Open Roads Forum  >  Tech Issues

 > Will fridge run off tow vehicle on batts on TT?
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.