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Old 06-22-2018, 05:36 PM   #1
PSU1981
 
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2015 27' Flying Cloud
Spring , Texas
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Lifeline AGM Battery Discharge???

I need some help please. I have a 2015 27FB FC with a 4 stage converter with AGM batteries. We are in TX = hot summer & not so cold winters. I recently move the AS into a storage facility with 120 V power. I used to pull the negative terminal clamps off at the old storage I had her at & never had a problem with battery drainage - even with 4 - 6 months of storage. Now with the 120 power - I have power to the unit that I thought would keep the converter but battery is drained??
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Old 06-22-2018, 06:03 PM   #2
Half a Rivet Short
 
2017 30' Classic
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Hi

What position was the use/store switch in?

How is the use/store switch wired on your specific trailer (some disconnect the converter in one direction or the other)?

Has the breaker to the converter popped?

Is the converter dead ( it ... errr .... happens .... )?

Is there *really* 120V power to the trailer? ( breakers / cords / adapters ... all can go wrong)

Lots of possible issues to dig into.

Bob
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Old 06-22-2018, 06:50 PM   #3
PSU1981
 
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Spring , Texas
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Use / store is on
Breaker is good
I can hear the converter running - but not sure it is charging
Definitely 120 going to trailer- checked with multimeter on a socket

Another weird thing is the SeaLevel II Tank Monitor reads 13.5 while the multimeter at the battery is 6 - 7 & barely enough power to run the power jack???
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Old 06-22-2018, 07:25 PM   #4
Half a Rivet Short
 
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Quote:
Originally Posted by PSU1981 View Post
Use / store is on
Breaker is good
I can hear the converter running - but not sure it is charging
Definitely 120 going to trailer- checked with multimeter on a socket

Another weird thing is the SeaLevel II Tank Monitor reads 13.5 while the multimeter at the battery is 6 - 7 & barely enough power to run the power jack???
Hi

Ok, so you likely have a trailer that disconnects the battery from the converter when use/store is in the use position. Flip it to store and it probably will charge the battery. ( or move the cable on the relay so it no longer works that way).

Since it's just a wire to a lug, *most* trailers work one way. A few work the way yours does. Is it done on purpose or by accident? Who knows....

Bob
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Old 06-22-2018, 08:02 PM   #5
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Thanks Bob - will try that tomorrow
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Old 06-22-2018, 08:30 PM   #6
Half a Rivet Short
 
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Hi

There is some debate about how the relay on the use/store should be wired.*IF* yours is set up to disconnect, that's not what most of the wiring diagrams show. It pretty much guarantees that mistakes like yours will happen ....

Bob
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Old 06-23-2018, 01:39 PM   #7
PSU1981
 
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Spring , Texas
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Well it turns out that the use/store switch was in store mode - it fooled me because the red light was on because 120 was plugged in. All is well - thank you Bob!!
I wish this was a switch like the water pump that you can tell by looking at it & tell which way it is.
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Old 06-23-2018, 01:42 PM   #8
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2014 20' Flying Cloud
Long Island , New York
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Also -- sometimes that relay sticks, sometimes the light fails, so we always click the rocker switch a few times to make sure it ends up in the right place. If you have the overhead lights on when you do this, you have a full-scale-model showing the "current" state of affairs.

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Old 06-24-2018, 09:24 AM   #9
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Hi

I forget that the switch has no indicator on it. Our trailer has a Firefly system on it. When the switch is in "store" ( or when the 12V system totally and completely crashes ...) the brightly illuminated master panel goes out.

Bob
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