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Old 06-24-2018, 10:13 AM   #3
Chuck v
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Join Date: Dec 2009
Posts: 1,026
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First, as I am unfamiliar with your model and year -- is your coach battery a single 12 volt battery or does it have two in parallel? Also by coach are you referring to the chassis/engine start battery or the 'house' battery that runs the lights, etc.? Presuming the first case, since that would be the source of the dash instruments. If the chassis battery is one of a pair in parallel, then be sure to replace them both at the same time with the same size/model/age battery as charging lead-acid batteries in parallel is a tricky issue, and the battery without the burned post/connection could have an internally shorted cell that is dragging the 'new' battery down. I have a friend that replaced only one battery of a pair in his 5th wheel and ended up calling the fire department/hazmat team to his campsite to remove the overheating battery before it caught fire.


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Chuck
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