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Old 01-18-2015, 10:29 AM   #1
2 Rivet Member
2015 25' FB Flying Cloud
Meadow Vista , California
Join Date: Jan 2015
Posts: 45
Converter,battery and solar upgrade

I have a 2015 FC FB Twin. It has 200 watts of solar with a Zamp controller that can handle 450 watts. What I would like to do and know if it is possible is to add an additional 200 watts of solar (is there room on the roof)? I also want to change the converter to the PD 4655, as is suggested in many posts. Lastly I would like to add additional battery storage. I am thinking two group 27 AGM's in one of the outside storage compartments. If I add AGM's would I need to replace the stock interstate batteries that are currently in the FC? I would appreciate feedback from anyone with knowledge or expertise in this area.

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Old 01-19-2015, 09:58 AM   #2
2 Rivet Member
2015 25' FB Flying Cloud
Meadow Vista , California
Join Date: Jan 2015
Posts: 45
Anyone have any thoughts on this?

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Old 01-19-2015, 10:57 AM   #3
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2009 30' Classic
Melbourne, FL , Searsport, ME
Join Date: Jul 2013
Posts: 308
Assuming your Interstates are lead acid batteries, then yes you will need to replace them. AGMs have different charge parameters than lead acid batteries and you would be overcharging one set while undercharging the other.

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