Reply
 
Thread Tools Display Modes
Old 11-24-2014, 05:55 PM   #1
Senior Member
 
LandJ's Avatar
 
Join Date: Sep 2014
Posts: 291
Battery charge while towing

Does anyone know if I have to do anything to a 2014 Ram 1500 in order to charge camper battery while hitched? I read somewhere that I might need to add a fuse or something.

I don't have the factory brake controller, I bought the wiring harness and used a Tekonsha that I had.

Thanks in advance.
__________________

__________________
John and Linda
2016 Rockwood 2604WS
2017 Ram 3500 CTD SRW
2016 - 47 nights
2017 - 47 nights
LandJ is offline   Reply With Quote
Old 11-24-2014, 06:08 PM   #2
Senior Member
 
Witch Doctor's Avatar
 
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 7,615
Maybe they left the fuse out to the pigtail for some reason in your truck. You can just use a multi meter and check your male plug end at the TV. I know on my ford I have a fuse for running lights and another for tail lights. Your break controller also has to be fused in your panel. Just a guess I have a good truck Fix or repair daily.
__________________

__________________
Rockwood #8289 WS 2012
F250 6.0 / Husky 16k
With 4 point leveling system
Witch Doctor is online now   Reply With Quote
Old 11-24-2014, 06:11 PM   #3
Senior Member
 
Boss Hoss's Avatar
 
Join Date: Feb 2014
Posts: 152
Check your manual for the fuse location-I'm sure you have one.My F-150 had a fuse location-but no fuse.It's a cheap fix-less than a few bucks for the fuse-but it's good to know that your tow rig is charging the TT battery while your driving.I think it sends the power to the "Brain Box" and that feeds it into the battery.
__________________
2013 Palomino 30ft. of Pure Bliss at 5400#-and then we have this 14 ft.Sea Eagle that I tote around for my wife and son.Michigan State Parks are The Best !:thumbsup
Boss Hoss is offline   Reply With Quote
Old 11-24-2014, 06:11 PM   #4
Site Team
 
Flybob's Avatar
 
Join Date: Oct 2014
Posts: 5,550
Many TV's have the wiring for the 12V aux in the harness, but do not install the fuse/breaker in the fuse box. You may have to install one. In addition, due to the length of the wire run and the gauge of the wire on most vehicles, you will not have a very high charging capacity. If you are trying to charge a battery that is 40% depleted, the voltage at the battery will not be sufficient to accomplish a good charge, If you are installing things and want to charge the TT battery from the TV, add a larger gauge wire.
__________________

2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
Flybob is online now   Reply With Quote
Old 11-24-2014, 06:56 PM   #5
Mod free 5er
 
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,215
Most trailer plugs have a charge wire and whether it is hot or not depends on the vehicle. If yours is hot, it will take several hours of driving to charge it if it is down to 40% charge. Most regular battery chargers only have 16 ga charge wires, at least the 3 Schumacher chargers I have are all 16 ga with clips.
__________________
OldCoot is offline   Reply With Quote
Old 11-24-2014, 07:01 PM   #6
Senior Member
 
Evo2700's Avatar
 
Join Date: Oct 2014
Location: Las Vegas
Posts: 209
I had a Tekonsha installed on my Ram which was pre-wired from the factory and it does charge the batteries while hooked up and the truck is running.
__________________

2015 Evo 2700
2017 Ram 2500 6.4 Hemi 4.10
Evo2700 is offline   Reply With Quote
Old 11-24-2014, 07:02 PM   #7
Site Team
 
Flybob's Avatar
 
Join Date: Oct 2014
Posts: 5,550
Yes your battery charger may have 16g wire, but it is at most 3 ft long. The wire in your TV /TT setup is probably closer to 20ft plus a plug and a few feet to the battery. At 10 amps and a 0.2ohm charge wire resistance, the 14.8 V from the TV alternator is now only 12.8V
__________________

2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
Flybob is online now   Reply With Quote
Old 11-24-2014, 07:15 PM   #8
Mod free 5er
 
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,215
Quote:
Originally Posted by Flybob View Post
Yes your battery charger may have 16g wire, but it is at most 3 ft long. The wire in your TV /TT setup is probably closer to 20ft plus a plug and a few feet to the battery. At 10 amps and a 0.2ohm charge wire resistance, the 14.8 V from the TV alternator is now only 12.8V
Well, after having numerous tow vehicles since I started towing rv trailers in 1975, I've never had a problem charging the batteries with the wire in the plug and they sure are not heavier than 14 ga at most and most are just 18 ga. Look at your tail lights, brake light wiring on your vehicle where the trailer pigtail is hooked to.
__________________
OldCoot is offline   Reply With Quote
Old 11-24-2014, 09:42 PM   #9
Senior Member
 
Stormrider151's Avatar
 
Join Date: Sep 2011
Location: South East
Posts: 915
When I bought my 2012 F150 new there were two fuses in the glove compartment that had to be installed in the high power fuse box under the hood. The hot wire was dead until they were installed. When checking to see if your hot wire in functioning be sure and check it with your truck running. And then with it shut down. This will tell you whether you need to unplug your trailer from your TV when parked and hooked up. If the wire remains hot when not running it could leave with a dead TV battery. Good luck.
__________________
Retired Fire Dept Battalion Chief
2016 Ever-Lite 232RBS
2012 F150 FX4 W/Max tow & Ecoboost

Getting old ain't for wimps!!!
Stormrider151 is offline   Reply With Quote
Old 11-24-2014, 10:37 PM   #10
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Location: Wilmot Twp, Ontario, Canada
Posts: 8,604
Initially the voltage drop would be higher but as the battery gets charged it would decrease and eventually 13.8 volts would be at your battery.

25 feet of 16 gauge

30 amps charge rate is a 3 volts drop
15 amps charge rate is a 1.5 volt drop
7.5 amps charge rate is .75 volt drop
Trickle charge at 2 amps would be .2 drop of Charging at 13.6 vdc

You are not going to boil the battery dry with too much charge current.

Brian
__________________

__________________
B and B is offline   Reply With Quote
Reply

Tags
battery, towing

Thread Tools
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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:46 AM.