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Chassis Battery Rundown Problem

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On 12/28/2019 at 9:41 AM, RayIN said:

What are the results of the load-testing on each battery?

On 12/28/2019 at 9:41 AM, RayIN said:


Ray, I just got back from the autoparts store. Both batteries checked out fine.

I'm guessing it is a sticky BIM, since connections and battery cells have been eliminated as culprits. It should be noted that Newmar is putting a Battery Isolation Manager in its late model DSDPs that has been discontinued by the manufacturer.

(Herman, thanks for your input. Kenneth Marczak is a longtime RV'er and fellow heavy equipment operator with the airline, a degreed engineer. I trust his judgement. He agrees with you. Of course, Huffy is also 100% right, when it comes to cold storage and future readers should appreciate that distinction: there are times when we'd de-power the inverter. But, for those of us who garage these rigs, Inverter and Charger are left running. Tiffin, Newmar and Forest River now all concur. Super thread, of value to people researching this topic, later.)

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