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Old 04-09-2011, 02:09 PM   #1
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Battery Drains w/BCC Disconnected.

Greetings,

I'm a new owner of a 2010 Georgetown 320Bunkhouse with BCC (Battery Control Center.). I'm having an issue where two fully charged 12V batteries drain down too 1/3 charge after 12hours...

1. The RV was on shore power all morning/day/afternoon BCC Enabled for charging (BCC's little fan in the rear is spinning telling me its probably charging..)
2. I disconnect shore power.
3. Drove to Walmart who tested both batteries as good (700CCA PASS)
4. Drive home, parked, and verified my battery levels were FULL via panel.
4. I hit the BCC's Battery Disconnect switch (I hear the relays snap below me)

The coach is dark; According to my manual, only the LP leak detector will run in the BCC disconnected state. It doesn't seam reasonable to me that the coach would loose 2/3 of its charge running an LP leak detector that pulls maybe .5ah.

I'm leaking someplace and it's not LP.
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Old 04-09-2011, 03:43 PM   #2
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Get a voltmeter. Connect to shore power and charge both batteries however long that takes. Now disconnect shore power. Now physically disconnect the batteries and and wait an hour. Measure the voltage of each battery, and write it down. Wait 24 hours, measure the voltage of each battery and compare with day before readings, should be within a few tenths of a volt, and 12 volts or over.

Report findings back and we'll give you some more stuff to check. As for Wal Mart testing your batteries, that is about as good as me saying I tested them. There is no quick way to test a battery.
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Old 04-11-2011, 05:28 PM   #3
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No time to play battery doctor this week so I put her back in storage until the weekend. 30+ hours charging, Battery Disconnect in the OFF position, and LPG valve twisted off.

PS.
A LPG Electrical question. Right before the hose to my 29gal LPG tank there is what looks to be a SMALL inline heating element. It has two wires going to it with a little silver nub on top that is HOT TO THE TOUCH. My LPG manual makes no mention of it. I imagine it heats the LPG into PG? What is it called?
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Old 04-11-2011, 06:47 PM   #4
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[A LPG Electrical question. Right before the hose to my 29gal LPG tank there is what looks to be a SMALL inline heating element. It has two wires going to it with a little silver nub on top that is HOT TO THE TOUCH. My LPG manual makes no mention of it. I imagine it heats the LPG into PG? What is it called?[/QUOTE]

I don't know what you are talking about here, but I have never heard of a heat element on a propane tank system, seems to me that heat and fuel spells trouble...... just needs oxygen and kaboom
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Old 04-11-2011, 07:00 PM   #5
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I don't get the "hot" part. Could it possibly be the sending unit for a remote read (inside) gas level monitor? Do you have one in your coach?
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Old 04-11-2011, 07:33 PM   #6
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Um, now you guys got me a little worried.
I don't have anything like it in the coach nor have I seen anything like it before.. I doubt I'm the only Goergetown owner that has this... Any 2009-2010 owners with the 29gal LPG tanks?

I didn't think it was a leak detector BECAUSE it was hot/uncomfortable to the touch. I thought maybe it was some arctic pack add on. It's not a regulator thats for sure.... Its very small, right next to the hose, and the silver nub rises off it about 1/2in for what I can only assume to be a heat-sink of some kind?

Or delayed detonation device?

I'll take a picture this weekend after I re-charge my drained batteries again...
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Old 04-12-2011, 10:12 AM   #7
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with the bats having nothing connected to them, do they hold a charge? i've had a bad battery behave like that.
disconnecting the bat is the ultimate test of the bat. the load test should have detected a problem but...
if that proves that the load test was correct, connect one thing at a time.
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Old 04-14-2011, 06:22 AM   #8
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i think what you are talking about is the gass shut off which is connected to the gass detector . whe the detector smells gass it sounds and sends a signel to that relay to shut down. i have a 2009 george town.
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Old 04-14-2011, 07:07 AM   #9
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Quote:
Originally Posted by n1joh View Post
i think what you are talking about is the gass shut off which is connected to the gass detector . whe the detector smells gass it sounds and sends a signel to that relay to shut down. i have a 2009 george town.
Now THAT will kill your batteries! If the detector is bad (or really detecting gas) it will send a shutoff signal to the LPG tank solenoid and power it closed. It is 12 volts. It gets HOT when being pulled closed. Has to be pulling several amps continuously.

Reset your LPG detector and see if that part cools off.
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Old 04-14-2011, 07:46 PM   #10
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try sutting off the the gas at the tank the disconnect the wire (one) at the switch and tape the wire so it dos not ground out and see if the battery goes dead. of it does the the switch could be bad.i don't have my coach here so i can't check the switch to see if it get hot? hope this helps
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