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Old 05-12-2018, 06:33 AM   #1
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Go Power! Solar guestion

I have a 200 watt Go Power! solar system with a 30 amp controller. The controller will read the battery volts and percent of charge but not the volts/watts coming from the panel. As far as I can remember it has never shown the watts. I did a quick check with a test light and there is power coming from the positive wire of the panel to the controler. Is my controler bad? Not real savvy with this whole solar business so any advice would be helpful. It's on a 2015 F285 gslr toy hauler.

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Old 05-12-2018, 06:38 AM   #2
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What is the voltage on the output of the controller when the sun is hitting your panels?
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Old 05-12-2018, 06:45 AM   #3
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On the control panel it read 12.3. Today it is supposed to sunny and warm all day here in the pacific northwest so I should be able to get a pretty accurate reading.
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Old 05-12-2018, 07:25 AM   #4
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Well, wait for the sun to come up. 12.3, of course, is your battery bank with nothing going in...since it's dark.
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Old 05-12-2018, 07:34 AM   #5
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That was yesterday afternoon around 6:00. But will check after work around 2:00.
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Old 05-12-2018, 12:47 PM   #6
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I have a 200 watt Go Power! solar system with a 30 amp controller. The controller will read the battery volts and percent of charge but not the volts/watts coming from the panel. As far as I can remember it has never shown the watts. I did a quick check with a test light and there is power coming from the positive wire of the panel to the controler. Is my controler bad? Not real savvy with this whole solar business so any advice would be helpful. It's on a 2015 F285 gslr toy hauler.

Thanks!


We have nearly identical rigs (2016 Shockwave F28SAGDX), and I think we have same controller. Assuming so, it also reads Amps going into battery. But the controller doesn't just dump all available Amps into the battery; it gauges the charge state of the battery and charges at appropriate level (up to available amperage given the panel's output). In pics below my batteries are fully charged so it is showing zero amps even though the panels are in nearly full sunlight. I have two flooded cell batteries in parallel which are charged/maintained as one by the controller. Click image for larger version

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Old 05-12-2018, 01:54 PM   #7
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The issue here is volts, not amps. Amps depends on the state of the battery bank, volts depends on the panels and the health of the controller.
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Old 05-12-2018, 01:56 PM   #8
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Mine shows volts, percentage of charge and amps. No watts.
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Old 05-12-2018, 01:59 PM   #9
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Mine shows volts, percentage of charge and amps. No watts.
That is correct. I ment amps not watts.
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Old 05-12-2018, 02:08 PM   #10
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I have 305 amp panels and like them a lot. Also use AGM bats.
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