Good Sam Club Open Roads Forum: Would this be a power converter issue??
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 > Would this be a power converter issue??

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dougrainer

Carrolton, Texas

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Posted: 07/05/22 01:24pm Link  |  Quote  |  Print  |  Notify Moderator

jkwilson wrote:

bguy wrote:

Load test the battery.


Would be a total waste of time and effort. The convertor should have more than enough current to run the air conditioner even with no battery installed at all.


Not a waste of time. When fulltime, odds are he has boiled his battery dry and is now DOA. You NEED a good battery for a Power Converter. It helps regulate the DC voltage and also is GOOD for a back up if you have the converter go bad. Puts less stress on a Power Converter when you have a good Battery(Load). Doug

jkwilson

Indiana

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Posted: 07/05/22 01:33pm Link  |  Quote  |  Print  |  Notify Moderator

CA Traveler wrote:

jkwilson wrote:

bguy wrote:

Load test the battery.


Would be a total waste of time and effort. The convertor should have more than enough current to run the air conditioner even with no battery installed at all.
I don't consider gaining knowledge a waste and the battery could be shorted which can cause other problems.

But yes he can disconnect the battery.


A shorted cell would be instantly obvious with a simple voltage measurement. A load test tells you nothing you don’t already know and gives you no useful information. Cranking amps is irrelevant in a deep-cycle application.


John & Kathy
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time2roll

Southern California

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Posted: 07/05/22 01:48pm Link  |  Quote  |  Print  |  Notify Moderator

bguy wrote:

Load test the battery.
The new battery?
The old battery is gone.


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wa8yxm

Davison Michigan (East of Flint)

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Posted: 07/05/22 04:55pm Link  |  Quote  |  Print  |  Notify Moderator

jkwilson wrote:

bguy wrote:

Load test the battery.


Would be a total waste of time and effort. The convertor should have more than enough current to run the air conditioner even with no battery installed at all.


Yes but if the battery failure mode is "Shorted cells" the battery may be overloading the converter.

Batteries can fail several ways
high resistance
No capacity
SHORTED CELL
Are the 3 most common.


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after a semi "nicked" it. Still have the radios
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