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Old 05-31-2016, 07:46 PM   #15
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1959 24' Tradewind
Astoria , Oregon
Join Date: Nov 2002
Posts: 223
I got no spark with a half-dozen on/off switchings today. Hoping for continued similar performance. The switch (made by Marinco) is rated for 275 continuous amps and 475 intermittent amps.

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Old 05-31-2016, 09:01 PM   #16
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2007 27' Safari FB SE
Rancho Murieta , California
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I have a Noco G26000 smart charger. I always charge 100% before and after the trip. I also use it with my Honda 2000 when dry camping. Works pretty well.

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Old 06-01-2016, 12:09 AM   #17
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2002 30' Classic S/O
Melbourne Beach , Florida
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Originally Posted by Silver Hawk View Post
Negative is the 'ground' side of the battery. Positive is it 'out' side of the battery for the amperage going to the panel. Disconnecting the ground you do not get much of a spark. Disconnecting the positive you get full amperage of the battery. Large spark. Will burn out switch contacts and is dangerous and if there are any fumes - will cause an explosion.
Whatever current goes out of the positive terminal goes into the negative side. There is no difference in current except for direction through the switch.

The safety issue is that when wrenching on the positive terminal, if you slip and the wrench hits the body you have essentially shorted the battery, resulting in a big spark and the potential for a fire or battery explosion. When wrenching on the negative terminal which is connected to the body, if you slip the only thing you can hit that is a problem is the positive terminal. When disconnecting the battery, negative terminal first. When connecting the battery, negative terminal last.


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2002 Classic 30 Slideout
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Old 06-02-2016, 04:03 PM   #18
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2016 30' Classic
Issaquah , Washington
Join Date: Feb 2010
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The new classics have 2 parasitic drains. The LP gas detector and the Inverter. The LP detector draws 60 milliamperes and the Inverter draw 105 milliamperes. Both are connected directly to the battery. If you use "STORE" the converter will be isolated from the battery and the battery will not be charged while the 165 milliamperes drain will remain. 0.165 amp hours X 24 Hours X 7 days is approximately 28 amp hours per week. If you have 200 amp hours of storage your batteries will lose 14% per week. Therefore you will need to recharge your batteries every 3 weeks.
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Old 06-02-2016, 04:25 PM   #19
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2010 30' Classic
Vintage Kin Owner
South of the river , Minnesota
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Originally Posted by CORockies View Post
Thanks for all of the advice. Sounds like the LP detector may be the culprit while in storage. Anyway around this one short of disconnecting the batteries? We definitely make sure that the switch has been put into store mode. Solar will be down the road as it will be needed for what we like to do. Again, thanks for the advice!

Zane and Diane
On my trailer, I disconnected the LP detector and threw it in the trash. Problem solved.

I do not believe they provide any safety benefit in RVs. They do help in yachts, which for various reasons are at much greater risk of an undetected leak.
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Old 06-02-2016, 04:33 PM   #20
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2008 25' Classic
Nixa , Missouri
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Move the LP leak detector 12v connection to the use/store switch. When the use store switch is in store the LP detector is off unless you are connected to shore power.

While is storage just disconnect the negative battery terminal or if you want to do what every SOB does nowadays, install a mechanical disconnect switch.

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Old 06-02-2016, 04:50 PM   #21
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2014 20' Flying Cloud
Long Island , New York
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Is the sub-woofer in some trailers mentioned by others another possible parasitic drain?
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Old 06-02-2016, 09:37 PM   #22
2 Rivet Member
2016 30' Classic
Issaquah , Washington
Join Date: Feb 2010
Posts: 86
Originally Posted by OTRA15 View Post
Is the sub-woofer in some trailers mentioned by others another possible parasitic drain?
Not in the 2010 Classic Limited 27 FB and not in the 2016 Classic. In the STORE position, the only drain will be the LP gas detector (in late model trailers) and the inverter, both of which are connected directly to the battery bank. The owners manual should have a wiring diagram. If you do not have the owners manual you can download it from the Airstream website.
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Old 06-04-2016, 03:47 PM   #23
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2016 27' Flying Cloud
Colorado Springs , Colorado
Join Date: Oct 2015
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Sorry for responding so late. Been very busy lately. Anyway, we have the Airstream at the house for some maintenance. The charge on the batteries is holding at 12.3 volts. That was one week of it being in storage. In my mind not too bad. That said, the only thing that we can think of is that we did not put it into store mode. We'll keep an eye on it and post any anamolys. Thanks again for all of the advice!

Zane and Diane

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