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04-27-2017, 03:36 PM
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#1
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1 Rivet Member
1976 27' Overlander
Johnson City
, Tennessee
Join Date: Jan 2015
Posts: 15
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What runs the interior lights?
Hello - I'm a new learner with a 1976 27'Overlander. The (?) which takes the charge from the battery and operates the interior lights on our Airstream has gone bad. I have been operating on the assumption that this is an inverter. The battery was new, we have had it attached to the "inverter" and also a trickle charge. this system worked for about 2 months of scattered use. Then the battery died. - actually it was killed. So what do I replace? Is it an inverter? or a converter? I wish my someone could just tell me what to go buy lol.
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04-27-2017, 04:36 PM
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#2
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Rivet Master
1994 34' Excella
Warren
, Manitoba
Join Date: Apr 2006
Posts: 1,244
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The batteries run the interior lights in your trailer. The converter is plugged into a 120V plug and converts 120v to 12v to charge your batteries. The old converters did not have a 3 stage charge like the new ones and in most cases boilled your batteries when plugged in to shore power for an extended period of time and using none or little 12v. Any time you are plugged into shore power (120v) the converter is charging your batteries. If you were on shore power and had a battery charger connected to your batteries they were getting a real jolt. I have replaced my converters in both my 1976 and 1994 with a Progressive Dynamics PD9245 with very good results and a modest cost. Installation is easy and the instructions that come with the unit are very good. Others on the forum have used this brand and as well as others with good results. By getting rid of the old converter your rig will shed about 50 lb. as well!! Good luck, Chris
__________________
ACI #7394
2012 GMC 2500 HD Duramax Denali
1994 Excella 34'
1987 Limited 34', 1976 31', 1976 Argosy 22' Gone to new homes
Hensley Hitch
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04-27-2017, 08:34 PM
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#3
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Rivet Master
1974 Argosy 26
Morrill
, Nebraska
Join Date: Nov 2009
Posts: 6,014
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X2 on the PD 9245.
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04-27-2017, 08:35 PM
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#4
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1 Rivet Member
1976 27' Overlander
Johnson City
, Tennessee
Join Date: Jan 2015
Posts: 15
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thank you!
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04-27-2017, 08:36 PM
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#5
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1 Rivet Member
1976 27' Overlander
Johnson City
, Tennessee
Join Date: Jan 2015
Posts: 15
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thank you so much!. Will I still need the trickle charge once we replace the converter?
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04-27-2017, 09:58 PM
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#6
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Rivet Master
2006 25' Safari FB SE
Spokane
, Washington
Join Date: Sep 2009
Posts: 1,843
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I have an IOTA 55 (I believe) and it is a 3 stage converter. It charges the batteries based upon the charge level. When low it charges at a high rate, as the batteries get charged it will step down to a medium level and when they are fully charged it goes into a trickle mode. This is the idea even though my description is not the best.
The idea here is that you could leave your trailer hooked to 110V and not damage your batteries.
As I understand it, your converter converts 110V AC to 12V DC which runs all of your 12 volt appliances. What is left over goes to charge your batteries. You don't really need to have house batteries when plugged in. I don't think this is the best idea but the converter will take care of things.
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04-28-2017, 07:21 AM
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#7
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Rivet Master
1974 Argosy 26
Morrill
, Nebraska
Join Date: Nov 2009
Posts: 6,014
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No need for a trickle charger if you have a modern converter.
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04-28-2017, 09:39 AM
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#8
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Free Range Human
2012 25' FB Flying Cloud
Currently Looking...
Haines
, Oregon
Join Date: Oct 2008
Posts: 736
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Your lights receive 12VDC from a DC buss which in turn receives power from two different sources. They are the battery when it's connected, and your converter when there is shore power on the trailer.
As mentioned above, a modern converter that has the ability to go to a float/maintenance charge once the batteries are at 100% is worth it.
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04-28-2017, 12:15 PM
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#9
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Rivet Master
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,070
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Quote:
Originally Posted by CFA happy
thank you so much!. Will I still need the trickle charge once we replace the converter?
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If you replace the convertor with a modern one it will have the trickle charger in it. Look at Progressive 9000 series
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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