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Old 03-10-2013, 01:33 AM   #1
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Al Navarro's Avatar
Tiffin Owners Club
Join Date: Aug 2009
Location: Columbus, Ohio
Posts: 8
House batteries are leaking

I added water today to the two house batteries in my 2009 Allegro 32BA. Became aware that the front cell in each battery is leaking -- as I added water, it was running right down to the ground. The other two cells in each battery seem to hold the water just fine.
We winterized the RV and let it sit outdoors in Albuquerque for a few weeks when we returned home for Christmas. Could these batteries have frozen and cracked? That was two months ago, but we've not noticed any degradation in the 12V power in the RV.
When I press the "Battery Voltage" button in the console above the passenger seat, it gives a reading of 13.53, which is a normal reading. I've always assumed that this reading is for the house batteries, though I suppose it could be for the chassis battery?
I would like to know what has happened to the house batteries, though I'm sure they will have to be replaced. The text on the top of each battery is "Exide GC-110 6 volt." I'm assuming that I need to look for 6-volt batteries. Any suggestions on where to buy them and what to pay?
Really appreciate any help you can provide!

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Old 03-10-2013, 07:57 AM   #2
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Costco or Sams have the best prices.

04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
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Old 03-10-2013, 07:58 AM   #3
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unless the batteries were reasonably charged, the electrolyte can freeze and that will often crack the case.

The voltage you are reading could be from the converter, but as long as there was some electrolyte remaining in that cell, you will get a normal voltage reading. However the capacity would be way down. The cracks you have could be about level with the top of the plates so quite possible to get normal performance out of them.

Might need to check for phantom or parasitic loads - such as propane alarms, bin lights left on etc - because they can run a fullycharged battery down to dead flat in a couple of weeks.
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Old 03-11-2013, 01:08 AM   #4
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Location: Columbus, Ohio
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Thanks, gents. I replaced the batteries today. Purchased them at Costco. Will be more aware in the future of freezing issues.
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