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 > New Battery boiling

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wa8yxm

Wherever I happen to park

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Posted: 05/21/19 06:24am Link  |  Quote  |  Print  |  Notify Moderator

Two common problems
Connecting a pair of 12 volt batteries in Series (That's a no no)
Connecting a pair of 6 Volt GC-2 in parallel... (LIkewise)

How to connect
-12+
-12+

Or

-6V+-6v+

Either method gets you 12 volts from the left to the far right end of the connection.


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twodownzero

NM

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Posted: 05/21/19 06:45am Link  |  Quote  |  Print  |  Notify Moderator

My new batteries bubbled for an hour or so when first installed. They were mostly charged but the solar charged them the rest of the way and they bubbled. Haven't noticed it since then though.

mxdad290

Madison

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Posted: 05/21/19 10:03am Link  |  Quote  |  Print  |  Notify Moderator

Mine was sounded like boiling and had a whistle sound...even started smoking. I looked at them again this morning and I still think.I have it hooked up correctly. I took pictures, but can't figure out how to upload them.

time2roll

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Posted: 05/21/19 10:12am Link  |  Quote  |  Print  |  Notify Moderator

mxdad290 wrote:

Mine was sounded like boiling and had a whistle sound...even started smoking. I looked at them again this morning and I still think.I have it hooked up correctly. I took pictures, but can't figure out how to upload them.
Can't upload directly or link to your device.

Need to upload to a server and post the link.

I use this service recommended by RV.net and hosted by imgur.com

http://photoposting.is-great.net/?i=1


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time2roll

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Posted: 05/21/19 10:14am Link  |  Quote  |  Print  |  Notify Moderator

As far as the battery is concerned I would disconnect one cable and check voltage of the battery, then check voltage and polarity on the cables with a meter. Polarity should match and voltage should be within 1.5 volts.

May need to let the battery rest disconnected for a day to get a voltage reading.

Post the results.

dkreuzen

Lake Havasu City, AZ

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Posted: 05/21/19 10:23am Link  |  Quote  |  Print  |  Notify Moderator

Just an FYI, I had one of my two 12v chassis batteries (in parallel) start boiling without anything changing since Motorhome was new (6 years). One of the old batteries got an internal short and didn't stop boiling until I disconnected the other battery from it. The bad battery was smoking and really hot. I feel very lucky I caught the issue before something really bad happened.


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ArchHoagland

Clovis, CA, USA

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Posted: 05/21/19 11:27am Link  |  Quote  |  Print  |  Notify Moderator

Do you have a voltmeter?


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Gjac

Milford, CT

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Posted: 05/21/19 12:35pm Link  |  Quote  |  Print  |  Notify Moderator

Your profile says you have a 1999 MH, most MH's don't charge the chassis battery when plugged into shore power unless you or a PO installed a charging wires running from the house batteries to the chassis battery or a separate battery charger just for the chassis battery. Is this what you have? If that is the case the wire going from the house to the chassis battery may be reversed. All your main wiring could be hooked up correctly as you stated. Before you changed batteries did you chassis battery always charge when you plugged into shore power? Check the voltage coming out of your converter/charger what does it read?

Gjac

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Posted: 05/21/19 12:35pm Link  |  Quote  |  Print  |  Notify Moderator

Double post

mxdad290

Madison

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Posted: 05/21/19 03:08pm Link  |  Quote  |  Print  |  Notify Moderator

[image][/img]

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