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Adding Solar Panels - Renogy 100w

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  • Adding Solar Panels - Renogy 100w

    Hi all,
    We currently have four 100w Renogy (monocristaline) panels on our 337RLS. We want to add more but are being told they need to be the exact same. I'm guessing amps etc? Renogy makes about 3 different 100w panels. Renogy support has been terrible but my wife did get a half-*ssed message from them saying it didn't matter; any 100w panel would work.

    BTW - Jim Hinkle's solar tutorial at the GDRV rallies have been great. I know he added panels recently as well but I couldn't remember what he said about panel compatibility.

    Any feedback is appreciated. THANKS!

  • #2
    Originally posted by Hawgwild View Post
    Hi all,
    We currently have four 100w Renogy (monocristaline) panels on our 337RLS. We want to add more but are being told they need to be the exact same. I'm guessing amps etc? Renogy makes about 3 different 100w panels. Renogy support has been terrible but my wife did get a half-*ssed message from them saying it didn't matter; any 100w panel would work.

    BTW - Jim Hinkle's solar tutorial at the GDRV rallies have been great. I know he added panels recently as well but I couldn't remember what he said about panel compatibility.

    Any feedback is appreciated. THANKS!
    You can operate different sizes (wattage) of solar panels together. It may not be as simple as running them altogether as a single system. The attached link gives you examples of the many scenarios you might create depending on output voltage, wattage and other things. This description starts out simple and gets more complex as evolves to more differences, but you can probably gleen what you need from it. Since you already have four panels, wire size may become an issue also.

    Norm

    Norm & Karla
    2019 Imagine 2150rb
    2018 Chevrolet Silverado 2500HD
    2016 - 2018 Hobie Kayaks

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    • #3
      Originally posted by Hawgwild View Post
      Hi all,
      We currently have four 100w Renogy (monocristaline) panels on our 337RLS. We want to add more but are being told they need to be the exact same. I'm guessing amps etc? Renogy makes about 3 different 100w panels. Renogy support has been terrible but my wife did get a half-*ssed message from them saying it didn't matter; any 100w panel would work.

      BTW - Jim Hinkle's solar tutorial at the GDRV rallies have been great. I know he added panels recently as well but I couldn't remember what he said about panel compatibility.

      Any feedback is appreciated. THANKS!
      Will Prowse has a specific video on this topic.



      In the comment section of that video is another idea from a viewer: Different Panels with different voltage AND amps mean you need separate charge controllers. Think of the additional panels as a completely separate system.

      Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.

      Howard, 2017 Ford F-350 DRW, '19 315RLTSPlus

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      • #4
        Originally posted by Hawgwild View Post
        Hi all,
        We currently have four 100w Renogy (monocristaline) panels on our 337RLS. We want to add more but are being told they need to be the exact same. I'm guessing amps etc? Renogy makes about 3 different 100w panels. Renogy support has been terrible but my wife did get a half-*ssed message from them saying it didn't matter; any 100w panel would work.

        BTW - Jim Hinkle's solar tutorial at the GDRV rallies have been great. I know he added panels recently as well but I couldn't remember what he said about panel compatibility.

        Any feedback is appreciated. THANKS!
        Another source I've watched is the altE Store channel on YouTube. This particular video may be helpful:

        Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.

        Howard, 2017 Ford F-350 DRW, '19 315RLTSPlus

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        • #5
          Thanks Howard and Norm. I will check it out. Cheers!

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          • #6
            If you're connecting additional panels, as long as the voltage and current rating are the same (or pretty close), they'll work fine. If the voltage is different, but the current is the same connect them is series. If the current is different but the voltage is the same, connect them in parallel.

            Jim
            The moderators for this site are not GDRV employees, but we do own GDRV products.

            Jim and Ginnie
            2017 Reflection 297RSTS

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            • #7
              Thanks Jim. I ordered another BB battery today and got the info off of one of the panels. Renogy actually got back to me so I will be ordering a few more panels. We should be sitting good with 4 BB batteries and 800 to 1000 watts of solar. This will complete our system.

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