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Old 05-12-2022, 04:59 PM   #1
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Simple solar

I have a single 100w panel on the roof with a Renogy charge controller. I have a simple question. I want to prevent overcharging when my 18rbs is parked for a couple of weeks in storage. I have a fuse going from my charge controller to the battery. I have not yet fused the other side (Positive from rooftop going to the charge controller). If I did fuse it I would think pulling the fuse would cut the incoming power to the controller and prevent any possible overcharging? Should I trust my controller to behave and not cook my wet lead acid batteries (Two 12v batteries)?
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Old 05-12-2022, 05:07 PM   #2
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I would trust the controller. I leave my solar on 24/7 for the most part. My TT sits by my house and it's much easier after a trip to just let the solar and controller keep the batteries charged vs disconnecting the solar and plugging into shore power. I've been relying on my solar panels like that for 3 years. Only time they get disconnected is if I put the cover on for the winter.
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Old 05-12-2022, 06:31 PM   #3
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Should be fine. If you have flooded cell batteries just make sure they are topped off. You panel is only putting out about 5 amps at peak, and the controller will reduce the input when the batteries are fully charged so it won't overcharge.
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Old 05-22-2022, 05:34 PM   #4
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Quote:
Originally Posted by MTScruff View Post
I have a single 100w panel on the roof with a Renogy charge controller. I have a simple question. I want to prevent overcharging when my 18rbs is parked for a couple of weeks in storage. I have a fuse going from my charge controller to the battery. I have not yet fused the other side (Positive from rooftop going to the charge controller). If I did fuse it I would think pulling the fuse would cut the incoming power to the controller and prevent any possible overcharging? Should I trust my controller to behave and not cook my wet lead acid batteries (Two 12v batteries)?
Yes, with the others on this. Trust your controller.....at least I trust mine. You will need to periodically check the water level of your batteries. i find that I put about 1-1/2 quarts of water in my four 6v Golf Cart batteries about every 2 months.
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