 |
|
05-03-2018, 07:22 PM
|
#1
|
|
Senior Member
Join Date: Feb 2013
Posts: 229
|
Motorhome Battery Charging Tow
I don’t thing my motorhome is charging the battery of the tow. Had a repairman come out today and he said that there is voltage coming out of the cable that goes to the car. when I check voltage on car unplugged to motorhome it reads 12.45, than I plug to motorhome and it is still 12.45. I thought it should be higher when plugged to motorhome, repairman said no. Any thoughts?
__________________
Larry and Cherry
SOLD 2013 Newmar Ventana 4346
|
|
|
 |
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
|
05-03-2018, 07:27 PM
|
#2
|
|
Senior Member
Join Date: Jul 2014
Posts: 35,417
|
If Motorhome is running, the volts should go up to about 13 volts.
|
|
|
|
|
05-03-2018, 07:52 PM
|
#3
|
|
Senior Member
Join Date: Jul 2017
Posts: 1,343
|
What size is the charge wire going to the towed vehicle?
__________________
98 Monaco Windsor
2015 Rubicon Toad
|
|
|
|
|
05-03-2018, 08:18 PM
|
#4
|
|
Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
|
Quote:
Originally Posted by msy4us
I don’t thing my motorhome is charging the battery of the tow. Had a repairman come out today and he said that there is voltage coming out of the cable that goes to the car. when I check voltage on car unplugged to motorhome it reads 12.45, than I plug to motorhome and it is still 12.45. I thought it should be higher when plugged to motorhome, repairman said no. Any thoughts?
|
This may sound like a dumb question, but funnier things have happened. The car has been wired to accept the charge from the MH, right?
__________________
2008 Nash 25S
|
|
|
|
|
05-03-2018, 11:27 PM
|
#5
|
|
Senior Member
Join Date: Aug 2013
Location: BC, Cariboo, Lower Mainland.
Posts: 2,293
|
Quote:
Originally Posted by Rotten-Red
This may sound like a dumb question, but funnier things have happened. The car has been wired to accept the charge from the MH, right?
|
Right, you have to continue your umbilical to the tow battery.
__________________
2022 25FKBS
|
|
|
|
|
05-04-2018, 07:30 AM
|
#6
|
|
Senior Member
Join Date: Feb 2013
Posts: 229
|
Quote:
Originally Posted by Craig1960
What size is the charge wire going to the towed vehicle?
|
It is all in one wire - I plug into coach and plug other end into car - lights work
__________________
Larry and Cherry
SOLD 2013 Newmar Ventana 4346
|
|
|
|
|
05-04-2018, 07:33 AM
|
#7
|
|
Senior Member
Join Date: Feb 2013
Posts: 229
|
Quote:
Originally Posted by rlott2k
Right, you have to continue your umbilical to the tow battery.
|
Car is wired, however I had to change the cord that plugs into MH and car due to road damage - bought an over counter cord - have volts coming out of cord
__________________
Larry and Cherry
SOLD 2013 Newmar Ventana 4346
|
|
|
|
|
05-04-2018, 07:36 AM
|
#8
|
|
Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
|
Quote:
Originally Posted by msy4us
It is all in one wire - I plug into coach and plug other end into car - lights work
|
We know, all the wires are in the 7 wire cable. However, if it connects to a 4 wire on the TOAD, the battery is not connected! You need at least a 5 wire on the TOAD for this to work. The others are pointing out that a standard light setup for a TOAD generally does not include wiring the charge line from the coach to the TOAD battery, generally through a 20 amp breaker. You need to confirm that this has been done when the TOAD was wired. Your voltages indicate that it hasn't been connected.
__________________
Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
|
|
|
|
|
05-04-2018, 07:42 AM
|
#9
|
|
Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
|
Quote:
Originally Posted by msy4us
Car is wired, however I had to change the cord that plugs into MH and car due to road damage - bought an over counter cord - have volts coming out of cord
|
OK, but what which pin. There really is no standard for the battery charge function on a 6 way. I used the center, many do, but there are variations.
__________________
Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
|
|
|
|
|
05-04-2018, 07:48 AM
|
#10
|
|
Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Aug 2015
Location: Northwest Washington State or Western Montana, depending on the season.
Posts: 3,473
|
Quote:
Originally Posted by Sbrownstein
OK, but what which pin. There really is no standard for the battery charge function on a 6 way. I used the center, many do, but there are variations.
|
The wiring diagrams I have seen use Pin 4 for battery.
TJ
__________________
Jim (W7DHC), Diane & Mini Schnauzers, Lizzy & Ellie
2018 Mountain Aire 4047
2014 Honda CR-V 2020 Lincoln Nautilus "toad" w/AF1
|
|
|
|
|
05-04-2018, 08:01 AM
|
#11
|
|
Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
|
Quote:
Originally Posted by Tranquil Jim
The wiring diagrams I have seen use Pin 4 for battery.
TJ
|
The more you search the more different layouts you see. Time for a voltmeter! If you probe the toad socket, only one wire will have 12 volts on it...coming from the battery.
__________________
Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
|
|
|
|
|
05-04-2018, 08:05 AM
|
#12
|
|
Senior Member
Join Date: Mar 2017
Location: Roaring Gap, NC
Posts: 572
|
If I remember correctly either Blue Ox or Roadmaster sells a little kit that has wiring and fittings to splice into the connector on the tow end and routs to your toad battery. I believe it even has an inline fuse, but I could be mistaken. I think it was about 20 bucks..
__________________
Jeff & Tracie (Stella & Hoonah - the rescue mutts)
2018 Mountain Aire 4531
2013 Jeep Wrangler Sport
|
|
|
|
|
05-04-2018, 08:17 AM
|
#13
|
|
Senior Member
Monaco Owners Club
Join Date: Oct 2014
Location: Rigby, Idaho
Posts: 3,943
|
...and the wiring for the toad battery charger must have a diode to keep the toad battery from charging the motorhome. With this diode will likely be a fuse. If that fuse is blown, charger no workie. How's your fuse?
__________________
Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
|
|
|
|
|
05-04-2018, 08:25 AM
|
#14
|
|
Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
|
Quote:
Originally Posted by TonyMac
...and the wiring for the toad battery charger must have a diode to keep the toad battery from charging the motorhome. With this diode will likely be a fuse. If that fuse is blown, charger no workie. How's your fuse?
|
Diode is optional. Many just use an auto reset 20 amp breaker...$12.00. However, if there is a fuse and it is blown, that would be the problem.
__________________
Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
|
|
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Linear Mode
