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Old 06-29-2015, 01:05 PM   #1
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2 instead of 3 batteries

Ok to have 1 12volt and 1 6volt batteries.
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Old 06-29-2015, 01:19 PM   #2
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That really doesn't make much sense. Has it always been that way? How are they connected?

There is nothing in your RV that works from 12 volts. When people use 6V batteries. pairs of them are always connected is series to form what is essentially one large 12V battery.

Just adding a second 6V battery to your system won't do much good either. You could have two series connected 6V batteries in parallel with one 12V battery. It would kind of work, but the performance would not be very good.

Joel
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Old 06-29-2015, 01:28 PM   #3
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Quote:
Originally Posted by J Birder View Post
That really doesn't make much sense. Has it always been that way? How are they connected?

There is nothing in your RV that works from 12 volts. When people use 6V batteries. pairs of them are always connected is series to form what is essentially one large 12V battery.

Just adding a second 6V battery to your system won't do much good either. You could have two series connected 6V batteries in parallel with one 12V battery. It would kind of work, but the performance would not be very good.

Joel
I think you mean:
There is nothing in your RV that works from 6 volts.
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Old 06-29-2015, 01:30 PM   #4
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Ok to have 1 12volt and 1 6volt batteries.
ONE 6 volt battery in most RVs is pretty much useless since everything in most RVs runs on 12V.
However, ONE 12V "chassis battery", (aka: "starting battery"), and ONE 12V "house battery" will work....as will ONE 12V chassis battery and TWO 6 volt house batteries wired, (aka: connected), in series.

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Old 06-29-2015, 03:10 PM   #5
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I think you mean:
There is nothing in your RV that works from 6 volts.
Sorry, that is what I meant.
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Old 06-29-2015, 03:27 PM   #6
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Sorry, that is what I meant.
Sometimes it's simply amazing how the brain thinks one thing and the fingers type something else!
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Old 06-29-2015, 04:23 PM   #7
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A 1/2 dead 12 v placed in series with a 6v, then charge the two up to 12v?
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Old 06-29-2015, 04:56 PM   #8
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A 1/2 dead 12 v placed in series with a 6v, then charge the two up to 12v?
What??
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Old 06-29-2015, 05:22 PM   #9
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When I was in high school we had a party in the woods and radio on, keys on, 2 dead batteries. Cranked them down so much we could barely crank them over. We pulled a set of jumper cables and hooked them in series and got one running. After it was running we carefully installed just one battery, not good for modern day electronics, but worked on my 72 olds. Let it run for a few minutes then installed and jumped the other car. Basic electronics.
I agree not sure what someone would use a 12 and 6v in a motorhome but that my only conclusion. 2x 6v Batteries seems to be best for long slow draws, better reserve capacity numbers in a 6v.
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