Battery help please. - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-25-2015, 02:30 PM   #1
Senior Member
 
Mary Ann in MN's Avatar
 
Name: Mary Ann
Trailer: 1992 Scamp 13' Deluxe
Minnesota
Posts: 196
Battery help please.

I have a 92 and it has 4 wires going to the battery. I know red is usually positive and black negative but I'm totally confused with the 4 wires. I did not disconnect it so I don't know where they all go.
Attached Thumbnails
image.jpg  
__________________

__________________
Mary Ann & Butch
1992 Scamp 13' Deluxe, 08 Trailblazer
2011 Schnauzer "Butch"
God's Country, Minnesota
Mary Ann in MN is offline   Reply With Quote
Old 04-25-2015, 02:43 PM   #2
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
STOP.....
In this case ya gotta trace each wire back to either a ground (which is usually a short wire near by, or to some sort of load. Several of those wires are not original from the looks of the crimped on wrong size terminals. Hard telling what a previous owner did, trace them back before connecting or you could have a problem, even a fire. ..... BTW: In 12 Volt systems black is most often Positive..... And I'd bet that one of them is the positive lead to the 6 or 7 pin TV plug
__________________

__________________
Bob Miller is offline   Reply With Quote
Old 04-25-2015, 02:51 PM   #3
Senior Member
 
Mary Ann in MN's Avatar
 
Name: Mary Ann
Trailer: 1992 Scamp 13' Deluxe
Minnesota
Posts: 196
There is a #30 fuse in the yellow cable.
__________________
Mary Ann & Butch
1992 Scamp 13' Deluxe, 08 Trailblazer
2011 Schnauzer "Butch"
God's Country, Minnesota
Mary Ann in MN is offline   Reply With Quote
Old 04-25-2015, 02:55 PM   #4
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
I take it that's a 30 amp fuse, making that a 90% chance of it being positive, but not 100%, because some peeps put a master fuse in the negative line. If you look in the wires in the TV cable plug I'd bet you find that yellow wire there as the charging line.
__________________
Bob Miller is offline   Reply With Quote
Old 04-25-2015, 03:23 PM   #5
Senior Member
 
Mary Ann in MN's Avatar
 
Name: Mary Ann
Trailer: 1992 Scamp 13' Deluxe
Minnesota
Posts: 196
I was just out there and looked at it again. Now I see that the black and white wire both have black markings an the red and yellow have red markings. I will hook them up that way with the black going to the positive.
Having that fuse in the yellow one I assume charges the battery from the TV.
Thank you!
Attached Thumbnails
image.jpg  
__________________
Mary Ann & Butch
1992 Scamp 13' Deluxe, 08 Trailblazer
2011 Schnauzer "Butch"
God's Country, Minnesota
Mary Ann in MN is offline   Reply With Quote
Old 04-25-2015, 03:44 PM   #6
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
NO....
If the yellow goes to the negative post and is the charging wire, it will short out the charging line and blow the fuse when it's connect to your tow vehicle.
You really need to find out where the wires are connected. What ever markings made sense to the previous owner, but may be completely incorrect to you.
__________________
Bob Miller is offline   Reply With Quote
Old 04-25-2015, 04:31 PM   #7
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,309
Registry
I'm with Bob, DON"T DO IT UNTIL YOU KNOW FOR SURE. If connect up the charge line backwards the alternator in the tug could be damaged. I've seen it happen. You'd be better off to pay somebody to figure it out for you than pay the cost and fuss and bother of replacing an alternator. Also as Bob says don't be fooled because you can't get a shock from a 12 volt system, but can get a nice fire. Is burning up your trailer worth the risk?
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is online now   Reply With Quote
Old 04-25-2015, 05:49 PM   #8
Senior Member
 
Name: Bob
Trailer: Escape 5.0 TA
W. Mass
Posts: 436
Bob, Since when is red negative and black positive? I'd try ohming out between the blacks and the frame.
__________________
Bob & Deb
padlin00 is offline   Reply With Quote
Old 04-25-2015, 05:56 PM   #9
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
If you look at your car you will find the (+) will often be marked red. (Old School (+) is HOT) Common practice in RV wiring is that (+) is black. This is why I never believe color codes when hooking up a battery.
__________________
Bob Miller is offline   Reply With Quote
Old 04-25-2015, 06:43 PM   #10
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,309
Registry
Quote:
Originally Posted by padlin00 View Post
Bob, Since when is red negative and black positive? I'd try ohming out between the blacks and the frame.

Often when somebody adds wiring to something they grab what ever is handy, if they had red wire and needed to run it to the negative terminal they would do that. Many people have no understand of conventions and therefore do things are NOT standard. I wouldn't trust somebody I didn't know well to do follow any conventions, and wiring is worst. Everybody is an electrician, if you don't believe it just ask them and they'll tell how they are.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is online now   Reply With Quote
Old 04-25-2015, 06:44 PM   #11
Senior Member
 
Name: Jack L
Trailer: Bigfoot B-17 CB
Washington
Posts: 1,226
I added a few wraps of red electrical tape to my positive wires when I first got my trailer. That way I'm always sure which is positive. I could just visualize myself in a situation where I'm in a hurry and make a big expensive mistake.
__________________
Jack L is offline   Reply With Quote
Old 04-25-2015, 07:00 PM   #12
Junior Member
 
Rick in Maine's Avatar
 
Name: Richard
Trailer: Casita Independence
Maine
Posts: 9
Sent from my iPad using Fiberglass RV
__________________
Rick in Maine is offline   Reply With Quote
Old 04-25-2015, 08:44 PM   #13
Senior Member
 
Name: Jim
Trailer: Scamp
Colorado
Posts: 254
Registry
Mary Ann,

If you have no one else to help you and need to try doing something yourself, you can check a couple of things first for clues. See if either the red-marked wires (positive), or the black-marked wires (negative) are longer or shorter than each other, and reach their respective terminals without having to stretch them. Also, are any two wrapped together with tape further back in the bundle. If no help there, then this is how I would proceed to determine the correct connections.

You can identify which wire is the hot wire coming from the TV if you have a voltage tester or multimeter tester. Spread out the ends of the four wires so they don't touch each other or anything else. Then, back your TV up to the trailer and connect the 7-wire plug. Then touch the black lead from the meter to a good ground on the camper frame, and the red lead to each of the four wires, one at a time. The one that is hot is the one charging the battery from the TV. I suspect it will be one of the wires with a red mark, but you want to know for sure.

Then touch the red test lead to that positive wire and the black lead to each of the remaining 3 wires one at a time. When there is a reading or the light comes on, that is the negative wire grounded to the frame. I suspect it will be either of the wires that have a black marking.

If for any reason either the black or the white wire shows as hot when connected to the TV, then stop, since the PO messed with the wires and his markings are meaningless. Do nothing until a qualified person can help you.

That leaves you with two wires remaining unidentified, one a positive and one a negative. They provide the power and ground for the connections in the camper. Since the yellow wire has red markings also, and has the 30 amp fuse that would normally protect against excessive current draw from the trailer, my best guess is that wire is the other positive wire. Connect just that wire to the positive battery terminal. Then connect just the remaining ground wire to the negative battery terminal. You can then check to see that you have power in the camper. The lights should come on and any motors should operate normally.

If everything operates fine, you can then disconnect the ground wire, add the TV hot wire to the positive terminal, and then add the two ground wires to the negative terminal. Always connect the positive wires to the battery first, then the ground wires.

You are back in business.
__________________
Scamper Jim is offline   Reply With Quote
Old 04-26-2015, 08:44 AM   #14
Senior Member
 
Dan Meyer's Avatar
 
Name: Dan
Trailer: Scamp
Minnesota
Posts: 559
No Shortcuts Here

The factory Scamp wiring diagram shows the following:

Black - Battery positive
White - Battery negative
Red - Left stop and brake
Yellow - Back up lights

To avoid problems, you will need to do a lot more investigating before connecting any of these wires to any source of power.

--Dan Meyer
Dan and Dawn's Scamp Travel Trailer
__________________

__________________
Dan Meyer is offline   Reply With Quote
Reply

Tags
battery


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
Suburban GT6-3A furnace help, please. Raya Problem Solving | Owners Helping Owners 15 06-22-2012 11:08 PM
Advice please - how to wire a battery charger battery Steve_N_Janna Electrical | Charging, Systems, Solar and Generators 6 06-17-2012 05:53 PM
time to add a battery system, could use input please adriemel83 Problem Solving | Owners Helping Owners 20 08-14-2011 09:31 AM
Help...Bigfoot...Rare..please help! Tim Walliser Money Matters 15 05-03-2010 09:07 AM
Glastron Motorhome Please help! Scott Ss Classified Archives 1 05-31-2009 05:42 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.