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Old 06-15-2021, 07:00 PM   #1
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Two panels one controller

I plan to put one 100 watt solar panel on the roof of my travel trailer which keep my battery charged while in storage and I want to add another 100 watt panel that will be portable and will be placed where ever the sun is shinning around the campsite. Would like to connect them both to the one controller. Can some one give some input as to how to wire this all up. Would like the controller inside my trailer, battery on trailer tongue, one panel on roof and one panel outside.
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Old 06-15-2021, 09:24 PM   #2
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Wire in parallel.
Place a plug on the outside of the vehicle and plug the portable panel in there. I'd put a "Y" connector into the PV+ and PV- connections on the controller then route one side of each to the roof panel and one side to the connector n the side of the Vehicle. Done.
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Old 06-15-2021, 09:54 PM   #3
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Quote:
Originally Posted by Tomahawk View Post
Wire in parallel.
Place a plug on the outside of the vehicle and plug the portable panel in there. I'd put a "Y" connector into the PV+ and PV- connections on the controller then route one side of each to the roof panel and one side to the connector n the side of the Vehicle. Done.
Thanks so much. Makes sense. I think thatís the answer Iím looking for.
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Old 06-21-2021, 02:35 PM   #4
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When using multiple panels I prefer they be the same watts, volts and amps. That being said, say you wired your two in series as long as your solar charge controller can handle the net combined voltage and current you should be fine. Similar if wired in parallel if your controller can handle the combination youre good to go. Some small portable set out panels have their own built in onboard controller and that could be used hooked to your batteries along with another panel and its own controller...

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