Quote:
Originally Posted by Pete'sMH
DW and I were sitting in our new coach today 3 weeks into a snowbird trip to Florida. We both smelled something nasty and caustic. After a good while I discovered that one of the two 12V house batteries was literally boiling and smoking noxious white fumes. The case was hot enough that some of the wiring insulation was beginning to melt. Got everything disconnected and apart. The hot battery had just over 10V but it’s connected mate that was still cool was only showing 5V. Best guess is a dead shorted cell and the converter was trying its darndest to get the voltage up, cooking the bad battery. I’m no expert but looked to me to be on the razor edge of a catastrophe! Batteries had a date code of 18 months ago and and Interstate warranty of just 12 months. Argh! 2 new batteries and all seems to be well again. Maybe the coach builder (SOB) will reimburse me since we’ve only owned it for 4 months. I think it sat on the dealers lot for over a year so probably their neglect damaged it or it had a manufacturing defect. DW was very, very alarmed! Never a good thing....
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Our 2019 Bay Star was built in August of 2018 and the house batteries died a few months ago. Interstate wouldn't give us the time of day since they were over one year old. Newmar told me that it was a dealership responsibility as to how the batteries were cared for. Dealership paid me for one new original battery ($120?) which I used toward two AGM 6 volts. Glad you were okay.
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