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What usually causes this is a shorted internal battery cell. This may have been caused by the boiling out of battery fluids by using an older trailer single mode converter/charger unit that only puts out a constant 13.6VDC charge voltage. These types of converters require one to really keep tabs on the battery fluids. Your 2012 model trailer probably has the multi-mode smart mode charging unit. Something to check on...
Once the internal battery cell shorts out then the battery really demands excessive DC CURRENT available from the converter/charger unit and will get very hot in the process. The hotter the battery case gets gets the more rotten egg smell emits from the battery vents. They have been known to explode and is very toxic to breath in. Not a good situation.
Roy Ken
Once the internal battery cell shorts out then the battery really demands excessive DC CURRENT available from the converter/charger unit and will get very hot in the process. The hotter the battery case gets gets the more rotten egg smell emits from the battery vents. They have been known to explode and is very toxic to breath in. Not a good situation.
Roy Ken
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