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Old 07-23-2020, 09:19 PM   #1
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2014 27' Flying Cloud
2016 27' Flying Cloud
2021 Interstate 19
Innsbrook , Missouri
Join Date: Jul 2015
Posts: 9
Interstate Battery Management While in Storage

How do you manage your batteries when your Interstate is in storage? We're considering ordering a new 19 so I've downloaded the owner's manual to try to better understand it. Our Airstream experience is limited to our Flying Cloud. Because of the parasitic draw on the battery from the propane gas detector, I remove the batteries every time we put it away and take them home to keep them topped off. It's a pain. The Interstate manual indicates that the van has the same issue with the propane detector being hot-wired to the battery. Thanks in advance for any suggestions or advice.
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Old 07-23-2020, 09:59 PM   #2
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2012 Avenue Coach
Corpus Christi , Texas
Join Date: Feb 2018
Posts: 1,600
You may find the Ninteen has the CO detector on the battery disconnect. Maybe an owner will see this and weigh in. That's the way it is in my '2012 Avenue "b" motorhome. Since the battery switch needs to be "ON" in order to run things, I guess they figured that year that if you were inside, the switch would be on and hence the CO detector would be on as well.

Mine being older has a much cruder system of switches instead of the newer monitor panels, but with the battery disconnect "OFF", we get zero drain on my upgraded lithium coach batteries. I've had it sit for over a month with only 1-2% capacity loss according to my battery monitor. So it can be achieved with lithiums and attacking parasitic drain.
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Old 09-09-2020, 02:12 PM   #3
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2017 Interstate Grand Tour Ext
Denver , Colorado
Join Date: Jul 2018
Posts: 11
We turn off the master switch then disconnect the battery at the manual disconnect by the accelerator pedal in our 2017 GT. This has worked fine for us. We run it for 1/2 hour each month. Wait 10 minutes after stopping the engine before unhooking the manual disconnect. If you don't you will get a check engine light. If you get the light it will go off after 5 restarts. Mobey
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Old 09-10-2020, 06:28 AM   #4
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2019 27' Globetrotter
2019 Interstate Lounge Ext
Rye , New Hampshire
Join Date: Aug 2014
Posts: 329
Blog Entries: 2
Originally Posted by Mobey View Post
We turn off the master switch then disconnect the battery at the manual disconnect by the accelerator pedal in our 2017. Mobey

+ 1

For the first time ever, we’re not storing in an aircraft hangar plugged into electric.

Sad Times

Money Method above works great.
8 AS Interstate's owned: All Black Lounges
2014, 2014.5, 2015, 2016, 2017 (4x4), 2018 (4x4), 2019 (4x4+air suspension), current is a new 2018 (4x4+air suspension)
2019 AS 27' Globetrotter & 2019 F350 Plat Diesel
Rye, NH and Jackson, WY
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Old 09-10-2020, 04:21 PM   #5
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2013 Interstate Coach
Raymond , Iowa
Join Date: Jun 2014
Posts: 1,290
During winter storage I remove the coach batteries and remove the connector by the accelerator to isolate the chassis battery. Not sure either is necessary, but only takes 15 minutes for the coach battery and 15 seconds for the chassis battery. It sits in the driveway for weeks (months thanks to Covid) with all batteries connected with no problems.
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Old 09-10-2020, 06:57 PM   #6
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2016 Interstate Grand Tour Ext
Traverse City , Michigan
Join Date: Mar 2018
Posts: 138
Anyone connect a trickle charger to the chassis batteries? Just wondering if there is a connection I could hook up to without having to lift the floor panels.
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Old 09-10-2020, 07:23 PM   #7
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2013 Interstate Coach
Indianola , Iowa
Join Date: Jun 2019
Posts: 156
I have that on my to-do list. I believe, although not 100% certain) there is a positive battery connection under the driver seat for use with accessories. I understand there’s also a ground connection there too, where several brown grounds are all connected.
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