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02-06-2023, 07:04 PM
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#21
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Hello again BB. Both are now new batteries albeit not the same size. Positive to positive and negative to negative. I also found a corroded cable.
I live in this RV full time so when things go bad, to the toolbox I go!
I lifted the bad battery out by myself but it like to have whooped me. I had a young buck unload it as it must have weighed 80 lbs.
I think the battery I removed was bad and I was only running off of the new 12v I had purchased in October. However I think I will purchase a lithium/ion one in the future.
I'm going to figure out how to refit the 12v system. I have an ecoflow I'm going to hook up. Never too late to learn.
I understand about the bad battery and circuit breaker but have no idea about a disconnect switch.
I very much appreciate the help from this forum. What an extremely helpful group!
Thank you so very much BB! BTW, I lived in McKinney for 8 years. Grand Prairie for another 8. Now I'm in God's forsaken country. Lol
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02-06-2023, 07:19 PM
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#22
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Thank you Carl n Susan! Much appreciated!
Thanks moderator!
I see a voltage meter and my laptop in my future.
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02-06-2023, 07:32 PM
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#23
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,301
M.O.C. #30417
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I didn't have time to read all of the reply's so someone may have already pointed this out. You have 2 12 volt batteries in parallel which is fine but you can't mix battery types and must replace in pairs. Also when wired in parallel you must connect the positive feed to trailer on one battery and the negative feed to trailer to the other as in the pictures.
__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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02-06-2023, 09:16 PM
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#24
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Montana Master
Join Date: Nov 2012
Location: Rancho Santa Margarita
Posts: 633
M.O.C. #13025
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Dimomma if your rig is a 2005 you probably do not have a disconnect switch unless one was installed aftermarket. If you full time you probably do not need one. They are used for disconnecting all power during storage.
__________________
Russ and Linda, So. California
2004 Chevy Silverado 2500 HD, D/A, SRW, SB
2005 2955RL, Pullrite Superglide 16K hitch. Bridgestone Duravis R500 tires. EZ Flex Equilizers with wet bolts.EMS HW50C, Disk brakes
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02-07-2023, 07:43 AM
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#25
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Wow! Thanks Foldbak! I'll double-check the configuration. I think I'll pull the small battery and get another one just like the one I purchased yesterday.
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02-07-2023, 07:44 AM
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#26
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Thank you h2oJocky. One less thing for me to worry about.
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02-07-2023, 11:19 AM
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#27
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Montana Fan
Join Date: Mar 2022
Location: LYNDEN
Posts: 286
M.O.C. #30751
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Quote:
Originally Posted by Dimomma
Wow! Thanks Foldbak! I'll double-check the configuration. I think I'll pull the small battery and get another one just like the one I purchased yesterday.
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If you purchase another battery that should give you 2 12volt batteries and you will need to hook them up ii a parallel connection. That will be all positive (red) cables hooked together and all negative (black) cables together. Do not hook them in series. You will destroy electrical components quickly if hooked up in series producing 24 volts.
__________________
2003 Holiday Rambler Navigator 43PKD 500HP 11L Cummins ISM
2005 Keystone Montana 2955RL (sold)
1999 F350 SC (sold)
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02-07-2023, 05:38 PM
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#28
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Montana Master
Join Date: Feb 2008
Location: woodstock
Posts: 545
M.O.C. #8174
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A quick check is connect the batteries to a charger and see if that fixes the lights and fridge. If so then you have a bad converter.
__________________
Ed
Montana Master
Woodstock Ga
2020 3931 FB Legacy
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02-09-2023, 12:49 PM
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#29
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Foldbak, My negative cable doesn't seem to be hooked up to the RV. Would you look at my pics and instruct me how to unhook the small battery? I didn't realize that my negative cable was hooked up only to each battery and I want to get rid of the small battery.
Any help from anyone would be greatly appreciated.
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02-09-2023, 02:00 PM
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#30
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,210
M.O.C. #6433
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That large white wire from the battery and screwed to the side wall is your ground wire to the RV. The RV frame serves as battery ground to your 12 vdc devices. The frame also serves as safety ground for the AC power.
I am assuming that white wire screw goes into a frame member behind whatever that black panel is.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-09-2023, 02:12 PM
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#31
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Hi BB. It's not the ground wire I'm concerned with. I want to take out the small battery but don't know what to do with the negative cable as it only seems to be connected to the two batteries and not to the RV itself. I know I need positive and negative to effectively run 12v just like a car but I'm not seeing any negative connection for the RV. Does that make sense? I'm good with the positive and ground but that black cable is only running between the batteries and I'm afraid to connect it to the wrong terminal. Thanks BB!
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02-09-2023, 02:29 PM
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#32
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,210
M.O.C. #6433
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The black wire of one battery is connected to the other battery which then goes via the white wire to ground thus connecting both batteries grounds to RV frame. Likewise the red wire of one battery connects to the red wire of the other battery which in turn goes to the RV via the auto reset circuit breakers.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-09-2023, 02:32 PM
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#33
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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So what do I do with the black wire? I think it should be connected somewhere.
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02-09-2023, 02:39 PM
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#34
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,210
M.O.C. #6433
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Since you are removing the battery on the left you no longer need the black wire. The white wire will provide ground from the battery on the right to the RV. Likewise you no longer need the red wire from the battery on the left to the battery on the right.
You will be left with one battery with a white wire to ground and a red wire for +12 volts o RV.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-09-2023, 02:49 PM
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#35
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Awesome! Thanks so much BB! No black (negative to me) wire needed.
BTW, this will still trickle charge won't it?
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02-09-2023, 05:04 PM
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#36
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Montana Master
Join Date: Nov 2012
Location: Rancho Santa Margarita
Posts: 633
M.O.C. #13025
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Dimomma I think you should get one of these. It converts old technology to a smart converter. You can do a search on this forum and several people use them on older converters. I bought one and it works great. You just plug it in to your existing converter with a phone type jack. Mine was located under the steps to the bedroom.
https://www.amazon.com/IOTA-Engineer...e%2C506&sr=1-4
__________________
Russ and Linda, So. California
2004 Chevy Silverado 2500 HD, D/A, SRW, SB
2005 2955RL, Pullrite Superglide 16K hitch. Bridgestone Duravis R500 tires. EZ Flex Equilizers with wet bolts.EMS HW50C, Disk brakes
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02-10-2023, 08:18 AM
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#37
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,301
M.O.C. #30417
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Quote:
Originally Posted by Dimomma
Awesome! Thanks so much BB! No black (negative to me) wire needed.
BTW, this will still trickle charge won't it?
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Yes the converter will still charge the battery.
__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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02-10-2023, 09:38 AM
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#38
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Thank you h2ojocky! I'm going to order one. Now to find the converter in this RV.
My lights/fridge are off again. I'm charging the new battery I replaced three days ago. I found a blown fuse but believe it to be for the landing gear. Maybe not. I'm on my way to find a replacement and see what happens.
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02-10-2023, 09:38 AM
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#39
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,210
M.O.C. #6433
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dimomma - has your initial problem with dim lights been corrected with what you have done so far?
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-10-2023, 09:40 AM
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#40
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Established Member
Join Date: Sep 2019
Location: Carlsbad
Posts: 32
M.O.C. #24945
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Thanks Foldbak! Hunting for the converter and any other fuses today. Little by little. Voltage meter is a necessity it seems.
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