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Old 07-08-2011, 06:27 AM   #1
Teachrz's Avatar
National RV Owners Club
Join Date: Jun 2010
Location: Caledonia, MS
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Charger AMP load

I was thinking about power consumption in my RV so I turned off everything except the refrigerator and the display showed a 5 AMP load. When I switched off the refrigerator, the load dropped to 2 AMPs for the converter. Since I only have 30 AMP service, I want to make sure I know where the power is going to ration it. Are these numbers normal?

Tim Wilcox
Caledonia, MS
1999 National Tropi-Cal V10 - 2008 Volvo C70 toad
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Old 07-08-2011, 01:46 PM   #2
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With the exception of running two air conditioners, we can live quite comfortably on 30 amps, including using the washer/dryer - - just not at the same time as the microwave/convection oven. What is it that you can't do?


Barbara & David O'Keeffe
Figment II (Alpine 2002 36 MDDS)
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Old 07-08-2011, 01:55 PM   #3
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The remaining 2 amps may be the power management panel, carbon monoxide detector, microwave clock.
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
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Old 07-08-2011, 02:20 PM   #4
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Remember the load of the converter will vary. The higher the output, the more current it will draw.
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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Old 07-08-2011, 06:47 PM   #5
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5A with the fridge on sounds normal. 2A without it seems high - my power hog coach runs at about 1A with everything off, and I have a bunch of exotic electronic gear generating parasitic loads.

2A of 120vac translates to converter output on the order of 18-20A @ 12vdc. If I were you, I would be looking for specific causes for using that much power. It could be one or more weak batteries that the charger is trying unsuccessfully to recharge. Or maybe you have things drawing power that you don't know about.
Gary Brinck
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL
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