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Old 07-03-2017, 01:48 PM   #1
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how to connect two 6v batteries

Going to switch the two 12v bats to two 6v bats
My 2016 AS has two sets of red/black cables coming from the trailer.
So how is this wired
Thanks
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Old 07-04-2017, 01:02 PM   #2
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Here's a schematic:

Click image for larger version

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Views:	170
Size:	40.6 KB
ID:	288708
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Old 07-04-2017, 02:14 PM   #3
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Quote:
Originally Posted by alano View Post
Here's a schematic:

Attachment 288708

Not sure I understand this but

two reds to + one battery , two blacks to - other battery
And then ?
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Old 07-04-2017, 02:21 PM   #4
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Originally Posted by MOS View Post
Not sure I understand this but

two reds to + one battery , two blacks to - other battery
And then ?
And then the positive on the one with the black connections to the negative on the one with the red connections.
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Old 07-04-2017, 02:50 PM   #5
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Hi

*Everything* (no matter what it is) that now goes to the + side now will go to the "RED" line in the drawing above.

*Everything* that now goes to the - side will go to the "BLACK" line in the drawing.

The only thing that will go between the two batteries is a jumper wire. Nothing else will connect to this mid point.

Bob
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Old 07-04-2017, 02:54 PM   #6
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Not sure why your two 12v volt batteries are not paralleled.
However, I'd recommend marking the cables with e-tape before removing. I put one red marking on battery 1 +, one white marking on battery 1 -, two red markings on battery 2 +, etc.

Your 6v batteries will need to be connected in series to obtain 12v.
that's why the - from one will go to the + of the other and then you'll be left with a single + and - to connect the load to.
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Old 07-04-2017, 03:44 PM   #7
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Connect + bat 1 to - bat 2 with jumper. That will create 12 volts across both batteries.
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Old 07-04-2017, 04:03 PM   #8
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Not sure why your two 12v volt batteries are not paralleled.
However, I'd recommend marking the cables with e-tape before removing. I put one red marking on battery 1 +, one white marking on battery 1 -, two red markings on battery 2 +, etc.

Your 6v batteries will need to be connected in series to obtain 12v.
that's why the - from one will go to the + of the other and then you'll be left with a single + and - to connect the load to.
It's probably not that his 12V batteries are not paralleled. It's that there's a red & a black cable for the lines to the fuse block, and a red & a black cable to the inverter. On mine, there's an additional skinny pair running from the "Zamp" inlet to the batteries as well. It's a bit of a snake nest!
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Old 07-05-2017, 04:00 AM   #9
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Originally Posted by cliffcharb View Post
Connect + bat 1 to - bat 2 with jumper. That will create 12 volts across both batteries.
I just don't get running a jumper cable from the + on one battery to the - on the other battery .
Sounds like trouble !
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Old 07-05-2017, 04:22 AM   #10
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I just don't get running a jumper cable from the + on one battery to the - on the other battery .
Sounds like trouble !
Think of that as an internal connection. Now you have two 6 volt cells added together to give you 12 volts, and two external connections - one '+' and one '-.' If you turned one of the batteries around, both external connections would be the same.
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Old 07-05-2017, 04:53 AM   #11
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Think of that as an internal connection. Now you have two 6 volt cells added together to give you 12 volts, and two external connections - one '+' and one '-.' If you turned one of the batteries around, both external connections would be the same.


That's helpful to think of it that way. It leads me to 2 questions though:

1) with the two 12 volts, I know taking the negative off first is the safe way to remove them at the end of the season and connecting the positive first is the safe way to put them back in at the start of the season. What would be the correct sequence for removing and reinstalling the two 6 volts wired as you suggest?

2) would any changes be required to the converter/charger or any other electronics?

Thanks!
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Old 07-05-2017, 05:47 AM   #12
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Simplified....six volts are connected in series, 12 volt are connected in parallel. Six volt......pos to neg. 12 volt.....pos to pos, neg to neg.
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Old 07-05-2017, 06:42 AM   #13
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That's helpful to think of it that way. It leads me to 2 questions though:

1) with the two 12 volts, I know taking the negative off first is the safe way to remove them at the end of the season and connecting the positive first is the safe way to put them back in at the start of the season. What would be the correct sequence for removing and reinstalling the two 6 volts wired as you suggest?

2) would any changes be required to the converter/charger or any other electronics?

Thanks!
1) I don't see why you couldn't follow the same sequence.
2) No. It's still 12 volts across both batteries.

I'm still using 2 12 volt batteries connected in parallel, but a lot of people have moved to using 2 6 volt batteries, which they then need to connect in series to measure 12 volts.

Parallel: Capacity (amp hours) is additive and the volts stay the same.

Series: Voltage is additive and the capacity (amp hours) stays the same.

http://www.zbattery.com/Connecting-B...es-or-Parallel
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Old 07-05-2017, 07:27 AM   #14
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1) I don't see why you couldn't follow the same sequence.

I'm just thinking about the "internal" connection from - to + between the 2 batteries. I guess you'd remove the negative side of the jumper and then the negative terminal, then the positive side of the jumper and then the positive terminal...?
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