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Old 09-24-2014, 05:24 AM   #1
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2010 20' Flying Cloud
Christchurch , Canterbury
Join Date: Dec 2013
Posts: 25
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Battery converter not charging battery

Hi, I am connected to shore power, but the battery converter doesn't seem to be charging the battery, what could have gone wrong? Normally when I connect shore power, the battery converter would send 13v to the battery to charge it. I unplugged shore power today, thinking the battery is charged up ready to go, but nop it's flat with just 6v, no lights

I can't imagine this to be a major issue, must be something that is loose or some fuse blown? Please help me trouble shoot, much appreciated! keen to go camping now it's spring time in New Zealand

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Old 09-24-2014, 10:25 AM   #2
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2006 23' Safari SE
Lexington , Kentucky
Join Date: Dec 2012
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The Use/Store switch needs to be in Use. Where is your switch set?


Rich & Yvonne
2006 Safari SE -Dora-
2004 4Runner SE

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Old 09-24-2014, 10:25 AM   #3
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1991 34' Excella
Princeton , New Jersey
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Did you have lights while the shore power was connected? If so you have a shorted battery.
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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Old 09-24-2014, 10:58 AM   #4
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2008 25' Classic
Nixa , Missouri
Join Date: Nov 2012
Posts: 3,663
I had this happen on my preowned 2008 Classic 25fb. The Parallax converter was not outputting at the battery connections. I used a multimeter to check. I'm surprised the dealer I purchased it from couldn't figure it out. I went camping after the "repair" and the batteries still discharged when plugged in to shore power. I had to buy a battery charger in a nearby town to save the trip. I ended up buying a Progressive 4655 from Bestconverter and installed it myself. Now I have a 3 stage converter which is a good upgrade.

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Old 09-24-2014, 03:47 PM   #5
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2010 20' Flying Cloud
Christchurch , Canterbury
Join Date: Dec 2013
Posts: 25
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Probelm solved. It was just a simple battery cut off switch, was on store and should have been set to use. Kind of a silly bug easy to miss and can drain batter juice while camping. Airstream can perhaps solve this by dummies proof it to make it charge the battery regardless of the cut-off switch. Thanks all for your feedback!!
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Old 09-24-2014, 03:55 PM   #6
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2014 25' FB International
Little Rock , Arkansas
Join Date: Jul 2012
Posts: 562
That switch caused me to ruin two sets of batteries in our last AS. When we picked up our 2014 this spring I replaced the converter the next week. Now I leave the batteries charging all the time and I don't have to worry about the batteries getting cooked.

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