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Old 10-30-2020, 07:55 PM   #1
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2021 23' International
P , California
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Posts: 37
Solar for 2021 23FB International

I just bought a 2021 23FB International and since it was so expensive to have the dealer install solar I decided to wait and learn more. My plan is for the highest wattage single roof panel and replacing the two stock Interstate batteries with two Lithium Ion batteries. I'm guessing that I'd need a charge controller but what else? Who makes the best batteries and electronics? Is this a difficult install?

Is there a company that sells kits for AS?
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Old 10-30-2020, 09:06 PM   #2
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2014 23' Flying Cloud
Park City , Utah
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Do a search here for ‘solar install’ and you’ll find a ton of threads and info. Lots of reading to do!
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Old 10-30-2020, 10:47 PM   #3
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2017 22' Sport
NCR , Ontario
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here is what i installed 2 years ago.
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Old 10-30-2020, 11:15 PM   #4
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2020 23' International
Evergreen , Colorado
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I’ve got two Zamp 90W panels and a Zamp controller on my 23FB, along with AGM batteries. It’s not bad, but I’m adding capacity with a Zamp portable panel. I’m not replacing the AGM batteries at this time.
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Old 10-31-2020, 09:51 AM   #5
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2021 23' International
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Quote:
Originally Posted by waninae39 View Post
here is what i installed 2 years ago.

Thanks. This looks far more complicated than I imagined. So going solar with Lithium Ion batteries involves more than just adding a charge controller?
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Old 10-31-2020, 09:52 AM   #6
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2021 23' International
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Quote:
Originally Posted by Dennis C View Post
I’ve got two Zamp 90W panels and a Zamp controller on my 23FB, along with AGM batteries. It’s not bad, but I’m adding capacity with a Zamp portable panel. I’m not replacing the AGM batteries at this time.

Thanks. Where did you find space for two panels?
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Old 10-31-2020, 09:55 AM   #7
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2020 23' International
Evergreen , Colorado
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Quote:
Originally Posted by viking1 View Post
Thanks. Where did you find space for two panels?
Zamp 90W panels are long and narrow, so they fit the roof of an Airstream very well. My panels are mounted on the forward portion of the roof, one on each side. I could easily fit two or perhaps four additional panels on the roof.
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Old 10-31-2020, 10:16 AM   #8
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2021 23' Globetrotter
Jefferson City , Missouri
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2021 Globetrotter 23 FBT

We ordered a 23 FBT with the factory solar. The dealer is going to install a second 90W panel for $750 but ended up throwing it in deal. We are discussing the upgrade from AGM batteries to Lithium. The costs and options are:

2 x Battleborn 100Ah Batteries
Updated converter
$2,800 installed, plus tax

Expion360 Option:
2 x Expion360 100Ah Batteries
Update converter
$2,800 installed, plus tax

Same pricing, but the Expion360 battery is a better performing battery in our experience. Battleborn is the recommended battery by AS

The only additional expense ( not doing) would be a shunt with temperature sensor and Bluetooth capabilities (smart phone app). This would allow you to see the charging rate and discharge rate. The cost on that is $528 installed, plus tax.

Dealer has us keeping the AGM's which I will sell as new - trade in was only $50 each!
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Old 10-31-2020, 11:07 AM   #9
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I would think that only having one panel would be limiting. My Interstate came with one panel. Now it has four. If there were room, I would add more.
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Old 10-31-2020, 12:24 PM   #10
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2010 23' International
Tucson , Arizona
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While rooftop panels sound good, when we camp in the summer we seek out shade which will reduce the efficiency of even the best panels. Rather than add more panels to our rig we added a portable panel with an extra long cord of high gauge wire to minimize resistance, and park in the shade and deploy the portable panel in the sun. In the evening we reposition it to catch the early morning rays, this way we get the best of both worlds, shade for the rig and maximum solar from whichever site we are at, the portable panel works for us. The panel has its own controller and plugs right into a socket on the battery box, for easy connecting and disconnecting. Also roof panels get dusty, which further reduced efficiency, and are a pain to keep clean.
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Old 10-31-2020, 02:32 PM   #11
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2017 23' International
Portland , Oregon
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No dealer!

If you're taking it to the dealer in the Bay Area, run don't walk. Take it to AM Solar and get a professional solar company to do the work. We started with factory panels and had them add one more, they turned our roof into Swiss cheese. The panels failed with in two years and they took no responsibility for anything.
AM Solar up graded our system with lithium and everything the dealer won't install that your system needs. You will regret any dealer work in the long run.
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Old 10-31-2020, 02:51 PM   #12
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2014 31' Classic
2015 23' International
2013 25' FB International
Apache Junction , Arizona
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Getting creative and replacing the original crank up TV aerial with a round auto search unit, we were then able to install five 100 watt AM Solar panels on the roof of our 2015 23D International Serenity. We were able to put the 300 amp-hour lithium battery just in front of the tire wheel well street side and under the sofa. In fact, the Magnum MSH-3012 inverter/charger, solar charger and all other system stuff including the added front power inlet with auto transfer switch fit under the sofa/dinette seating with no loss of storage. The pull out for a bed is also operational.

This work, along with replacing the failed factory flooring after driving 2,000 miles from the dealership and custom cabinet work, Truma instant on water heater, Dometic CU-434 stove and Vitrifrigo DP-150L Freon based Dan Foss compressor refrigerator tweaked our 23D to perfection. I had brought 15” SenDel wheels with 15” Michelin tires mounted to replace the stock 14” tires and wheels while adding the reused Hensley Arrow weight distribution hitch and Prodigy RF brake controller.

We had this work done by A&P Vintage Trailer Works in Paradise, TX. They are also authorized to perform Airstream warranty work including replacement aluminum skinning.
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