Coast Resorts Open Roads Forum: Tech Issues: Advice on new RV battery maintenance.


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EMD360

Arvada, CO

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Joined: 01/18/2010

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Good Sam RV Club Member

Posted: 04/14/21 10:43am

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Just in case anyone wonders whether their good advice is heeded. I just finished cleaning up the batteries and battery box and treated with Harbor Freight spray on undercoating. I’ll use these batteries first trip out as the seem to be taking a charge and holding it. Two 62 AH batteries are all that fit in the tiny battery box or I could go with one 100 AH. The box is 12” x 18” at its widest. My plastic box in the 2003 Itasca is larger. The paint was chipped but there was negligible rust so I just brushed it and cleaned it with baking soda water and sprayed it. Still took me several days.
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Looking at lithium’s I could fit 3 80AH or 4 36AH (considerably cheaper! But would need a DC to DC charger. Won’t justify the expense for awhile. Maybe I should look at lithium capable converter/chargers first.

EMD360

Arvada, CO

Senior Member

Joined: 01/18/2010

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Good Sam RV Club Member

Posted: 04/14/21 11:03am

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Grit dog
Missed your post but yes solenoid and transfer seem to operate just fine. Batteries are performing for now. Water, cleanup and a couple of charges seemed to work wonders. For now. The acid is a bit low in a few of the cells but the indicator still floats.
I charged them together then separately. I have a good variable Vector charger that was recommended here a decade ago. It was worth the $$.

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