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Old 12-11-2017, 08:19 AM   #1
Holens
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Battery overcharging

Hi folks,
I new to rving and bought a 2005 343l. I just discovered that when hooked up to 50amp shore power the battery is boiling out. I had the unit hooked up to 115vac, 20 amp service in the driveway for several weeks and didn't have the problem. All the AC and DC outlets/lights are working in the trailer.
Any suggestions are greatly appreciated.
Steve
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Old 12-11-2017, 11:36 AM   #2
dcg9381
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Steve, I had this issue on a 2005 Jayco. Turns out the converter was simply "peak and hold" meaning it charged to 14.2 and held it there. In the case of the Jayco, there was a plug-in for the converter that made it "smarter" - no longer peak and hold... Find your converter make/model and report back.
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Old 12-13-2017, 11:38 AM   #3
Holens
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Quote:
Originally Posted by dcg9381 View Post
Steve, I had this issue on a 2005 Jayco. Turns out the converter was simply "peak and hold" meaning it charged to 14.2 and held it there. In the case of the Jayco, there was a plug-in for the converter that made it "smarter" - no longer peak and hold... Find your converter make/model and report back.
Thanks for the reply. I saw a message in the tech folder that said 'older' units may not have a trickle charge capability. Unfortunately older wasn't defined.
My converter is built by Luminex RV products, model L041128, serial # 5105-RV010779.
Steve
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Old 12-14-2017, 11:06 AM   #4
Lee
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Hi Steve,

I don't see any correlation between being plugged into a 20A service or 50amp. The Converter will only pull the required current to supply it's output(s).
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Old 12-14-2017, 12:53 PM   #5
dcg9381
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Sheesh. Luminex RV Products don't turn up much. Whatever that thing is (model L041128) there is almost no documentation for it, barring a few used units and salvage units. As such, I can't read the manual to tell you what it does.

If you have a volt meter, simply put it on the battery and tell me what the peak voltage is. Leave it on for a few more hours, repeat the process.

Ideally, a converter will have multiple charge modes, like:
13.2 VDC Float, 13.6 VDC Normal, and 14.4 VDC Boost

If it's charging peak and hold over about 13.7 or so - it's going to do what you describe and boil out the battery. Your choices are to manage the charging or replace it...

Changing the input voltage, [email protected] or [email protected] - shouldn't make any difference...
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Old 12-14-2017, 01:13 PM   #6
BigTexRex
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Unfortunately, the only fix is to upgrade to a better converter. Here's a down-to-earth explanation.

https://www.gonewiththewynns.com/RV-...verter-Charger
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Old 12-14-2017, 08:45 PM   #7
Alpine
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No fun having issues, that is for sure! Just this week I changed out my WFCO convertor for a new - https://www.progressivedyn.com/rv/po...vertercharger/
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