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08-12-2011, 09:02 PM
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#1
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Junior Member
Newmar Owners Club
Join Date: Aug 2011
Posts: 4
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coach battery cables overheating
I replaced the 4 6 volt batteries in my 99 dutchstar today and the positive cables became very hot. So hot I was unable to touch them. As I was attempting to unbolt the positive cable the bolt became red hot and unsoldered itself from the battery. I marked the cable and wires before unhooking the old batteries and drew a diagram, I am pretty sure that everything was correct. Any ideas?
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08-12-2011, 09:20 PM
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#2
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Senior Member
Newmar Owners Club
Join Date: May 2007
Location: Somewhere....
Posts: 4,054
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You've got a dead short somewhere. Your diagram is wrong.
joe
__________________
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake
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08-12-2011, 09:28 PM
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#3
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Senior Member
Join Date: May 2009
Location: Bluff Dale, TX
Posts: 624
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Should be like the 6 volts in the pic. 
__________________
Most RV batteries live a long and useful life, some are murdered.
2000 National Sea Breeze F53
1998 CRV Toad
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08-12-2011, 09:57 PM
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#4
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Senior Member
Join Date: Apr 2010
Posts: 661
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That's a great drawing Gary, very clear and easy to trace out.
Ken
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08-12-2011, 09:58 PM
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#5
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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Welcome graycaddy to Newmar forum & irv2.
Here is some threads with links to battery hook ups check them out and also follow the 12 or 6 volt pictures provided.
You better start from scratch starting with your ground cable to chassis frame.
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08-12-2011, 10:00 PM
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#6
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Junior Member
Newmar Owners Club
Join Date: Aug 2011
Posts: 4
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Thanks but they are hooked up according to diagram. What else could it be?
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08-12-2011, 10:03 PM
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#7
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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If you are heating up a cable its cross with negative or positive and your going to kill the battery.
You need to check the pictures and double check your wiring.
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08-12-2011, 10:14 PM
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#8
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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If you have a DP these pictures would be close to what you should have hooked up.
Note the Pos and Neg posts.
When ever you are changing out batteries you should have battery cut off switch operated and maybe pull the slide control fuses so your slides do not operate.
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08-12-2011, 10:26 PM
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#9
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Here are two pictures I took of mine and posted on the Newmar owners forum here:
Yep, they need cleaning, but notice the lack of corrosion. I added 4 oz of mineral oil to each cell, cut way down on needing to add distilled water and corrosion in the battery compartment. These are the OEM U-2200 batteries after 9 years BTW.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-12-2011, 10:34 PM
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#10
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Senior Member
Newmar Owners Club
Join Date: May 2007
Location: Somewhere....
Posts: 4,054
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You sure you don't have the ground and hot lines leaving the battery bank reversed?
joe
__________________
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake
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08-12-2011, 10:53 PM
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#11
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Junior Member
Newmar Owners Club
Join Date: Aug 2011
Posts: 4
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007 thank you for the pictures , my batteries are hooked up identical to the ones in the picture. Mr D thanks for the tip on the mineral oil.
dennis
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08-13-2011, 05:46 AM
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#12
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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Question did you find your problem and are you OK now?
If you found the problem we have all made these type mistakes thats how we learn for everyone. 
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08-13-2011, 07:33 AM
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#13
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Junior Member
Newmar Owners Club
Join Date: Aug 2011
Posts: 4
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worked until late in the night, no fix. Taking the pickup instead to Morro Bay.
Will be back tomorrow asking for all your in put. Thanks
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08-13-2011, 11:33 AM
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#14
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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When you get back can you take a picture of your batteries and post, so we can check them out.
Mean while have a safe trip and we will be here on your return.
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