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Old 03-05-2015, 05:32 PM   #1
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Batteries

Ok so I found that my trailer is set up for a 12 volt parallel system. So for the sake of doing things right because I don't know very much, should I stick with that set up and buy 2 12v batteries instead of 2 6v? If the 2 6v is recommended do I need to do some rewiring? Here is a picture of the set up on my 5er. Click image for larger version

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Old 03-05-2015, 05:50 PM   #2
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If money is not a problem, I would get 2- 27 group AMG batteries. If your cutting cost but have good performance I would buy 2 - 6 volt golf cart batteries wired in series to make 12 volts for your system. I replaced my 12v batteries for 2 - 6v batteries. The reserve power time is much better now.
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Old 03-05-2015, 06:51 PM   #3
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Thank you! So I just want to make sure I am correct. When you say wire them in a series,
I take one cable and hook it from batt 1 negative to batt 2 positive then take the trailer negative and ground to batt 2 negative and positive to batt 1 positive?
I hope that made sense
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Old 03-05-2015, 06:53 PM   #4
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Thank you! So I just want to make sure I am correct. When you say wire them in a series,
I take one cable and hook it from batt 1 negative to batt 2 positive then take the trailer negative and ground to batt 2 negative and positive to batt 1 positive?
I hope that made sense
Correct
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Old 03-05-2015, 06:58 PM   #5
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Good info. source..........


The 12volt Side of Life (Part 1)
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Old 03-05-2015, 07:04 PM   #6
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This information may help you in selecting a set of batteries.
Attached Files
File Type: pdf 6V Deep Cycle Batteries(2).pdf (52.8 KB, 62 views)
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Old 03-05-2015, 07:26 PM   #7
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Man you guys are awesome! Ok so the 12v side of things was perfect! So I have one more question regarding this... So I am going to do the 6v series.. Do I need to upgrade the wiring (gauge) and fuses?
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Old 03-05-2015, 07:31 PM   #8
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Man you guys are awesome! Ok so the 12v side of things was perfect! So I have one more question regarding this... So I am going to do the 6v series.. Do I need to upgrade the wiring (gauge) and fuses?
No you do not need to change anything just make sure what was connected to the pos is connected to the pos side and anything that was connected to the neg is connected to the neg side of the new set up.
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Old 03-05-2015, 08:55 PM   #9
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No you do not need to change anything just make sure what was connected to the pos is connected to the pos side and anything that was connected to the neg is connected to the neg side of the new set up.

Ok so they were disconnected when I got it, but there is a white and a red cord and the red one has a smaller black cord attached with it so am I safe to assume that the red is negative (red) and ground (black)?
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Old 03-06-2015, 06:09 AM   #10
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Ok so they were disconnected when I got it, but there is a white and a red cord and the red one has a smaller black cord attached with it so am I safe to assume that the red is negative (red) and ground (black)?
Never assume anything on these RV's you will find your self in trouble.
The safest way is to check which one goes to frame ground but you can check with a ohm meter for continuity to the ground frame connection.
The pos should go to some sort of a fused network.
Once you fig it out mark them for further info.
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Old 03-06-2015, 08:50 AM   #11
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Don't assume anything as wb7auk said...but PROBABLY the red/black are +(pos) and the white is -(neg). Yes, be sure which is which before connecting to a battery.
Before installing the batteries, this would be a great time to clean up any corrosion or rust inside the compartment if you see any. Prime any bare metal. You will appreciate later any efforts you put out on this cleanup now. Could also suggest the simple red/green felt corrosion washers you can buy any parts store be put on all the battery posts before use.
Again, efforts put in now will work well for years later.
Joe
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