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 > Checking voltage on connected 6 volt batteries

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bob213

Fresno, CA

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Posted: 03/30/19 11:26am Link  |  Quote  |  Print  |  Notify Moderator

Take a look at the red 6v batteries here and make sure that is how you have them hooked up.
12 volt side of life


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LeBout

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Posted: 03/30/19 12:11pm Link  |  Quote  |  Print  |  Notify Moderator

No, the batteries are connected in series, positive to negative.


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LeBout

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Posted: 03/30/19 12:39pm Link  |  Quote  |  Print  |  Notify Moderator

Checked my batteries the proper way and got a good strong reading (13+ volts). I will check them again at the end of our driving day.

LeBout

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Posted: 03/30/19 12:41pm Link  |  Quote  |  Print  |  Notify Moderator

bob213 wrote:

Take a look at the red 6v batteries here and make sure that is how you have them hooked up.
12 volt side of life


Yes, I have them connected in series. Positive to negative.

Boon Docker

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Posted: 03/30/19 05:20pm Link  |  Quote  |  Print  |  Notify Moderator

LeBout wrote:

Checked my batteries the proper way and got a good strong reading (13+ volts). I will check them again at the end of our driving day.


Good to hear that you got it figured out. [emoticon]

wanderingbob

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Posted: 03/30/19 05:21pm Link  |  Quote  |  Print  |  Notify Moderator

A battery is defined as two or more cells connected pos to neg . Two six volts equal one battery of six cells or 12 volts just like cannons !

RoyB

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Posted: 03/30/19 07:09pm Link  |  Quote  |  Print  |  Notify Moderator

Here is a simplified pictorial on how to connect two 6V Batteries in series to get 12VDC... after connected in this manner then just conside these two 6VDC batteries connected in serial as a 12VDC battery...

[image]
Google Image...

When connected in series note that your DC VOLTAGE will double but your AH rating will stay the same as one 6V battery rating...

If you want to increase your AH rating install a second series connected group of 6V batteries in parallel to the first group. Using the pictorial above of 220AH batteries you can get 12VDC at 440AH capacity by doing this...

Here is a schematic of how this can be accomplished...

[image]
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Roy Ken
[image]

LeBout

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Posted: 03/30/19 08:10pm Link  |  Quote  |  Print  |  Notify Moderator

Question: when on shore power, do the batteries need to be disconnected from the trailer before putting a voltage tester on them?

bob213

Fresno, CA

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Posted: 03/30/19 10:19pm Link  |  Quote  |  Print  |  Notify Moderator

I would say yes(just unhook from shore power) or flip the breaker for the converter to make sure it is not charging batteries as you take your reading.

opnspaces

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Posted: 03/31/19 01:15am Link  |  Quote  |  Print  |  Notify Moderator

Yes, depending on what you're testing for. If you want the batteries state of charge you need to disconnect the shore power cord. But then you should turn on a load like the furnace and let it run for about 2 minutes first to remove the surface charge from the shore power.

However, if you want to check if your charger is working, take a battery reading with the shore power disconnected. Then plug in shore power and take another reading. If the charger is working you should see the voltage jump up to at least 13.5v.


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