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Old 08-17-2016, 09:04 AM   #1
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Hot house battery

Concern: Light Smell of sulfur caused me to dump tanks several times in the past few days, no fix. A bit of research led me to inspect the batteries for over heat. One of our 2 house batteries is running hotter than the rest. Used the infrared thermometer and its running about 150-170 degrees when all the rest (house/coach) are running about 110 deg. The Dash is reading about 14.1V going down the road. The Xantrex1800 is showing 13.5V when on shore power. I pulled out the tray to see if perhaps the battery is dry, but it appears the fill caps are sealed shut. Battery stays hot on Gen & Shore power alike.
Does not appear that any of the battery date tabs have been pulled so i can't tell how old the battery is. Coach is a 2016, so batteries shouldn't be that old...

See picture (sorry, don't know why its showing up upside down )

Any thoughts?
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Old 08-17-2016, 09:09 AM   #2
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It may be the battery is going bad and overcharging and getting hot. I would disconnect it and put a load test on it to find if it has a bad cell or something.
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Old 08-21-2016, 09:07 PM   #3
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That battery should not be that hot in my opinion. I would pull that out and test before something ugly happens.
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Old 08-21-2016, 09:24 PM   #4
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Time to disconnect that battery, external temp that high, its ready to pop!


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