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Post by tattoo on Oct 30, 2018 13:06:49 GMT
My panels are facing north, but are pretty flat almost horizontal.
This is the voltage drop from today
This is the voltage drop from yesterday
They are both very similar.... What about something like a power pole casting a shadow? It wouldn't take much of a shadow to cause that.... Can you go out at 9am and look at your panels to see for sure?
Everything looks just fine except for that....
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Post by blade3609 on Oct 30, 2018 15:32:17 GMT
I also think its a glitch.. No weird voltage drops at 9AM today.
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Post by blade3609 on Oct 30, 2018 16:50:25 GMT
That was the plan to check outside at 9AM, but today no issues. I think its a glitch.
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v10
Solar Advocate
Posts: 81
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Post by v10 on Oct 30, 2018 19:56:18 GMT
Make sure your battery type selection didn't get inadvertently changed.
Mine was showing some different numbers. Upon investigation, I discovered that I had accidentally changed the battery type
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Post by tattoo on Oct 30, 2018 23:38:38 GMT
That was the plan to check outside at 9AM, but today no issues. I think its a glitch. It could have been a glitch but I'm leaning more towards a shadow.... The sun is moving positions pretty quick across the sky this time of year....
A couple of months ago I thought I had a glitch in my CC..... But I have become to believe it was more of a time of year problem..... I will know more when it comes around next year....
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Post by blade3609 on Oct 31, 2018 6:47:23 GMT
I think its the charge controller as it shows voltage drop at a later time today.
voltage drop
charge Amps
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Post by tattoo on Oct 31, 2018 12:04:23 GMT
I think its the charge controller as it shows voltage drop at a later time today.
voltage drop
charge Amps
It could be the CC but I'm not convinced..... I still think it's normal because of your draw... Can you unhook your draw for a day and see if you still have the voltage drop?
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Post by playersz28 on Oct 31, 2018 12:32:14 GMT
What are you using to get the data for the charts?
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Post by blade3609 on Oct 31, 2018 16:00:09 GMT
Im using a raspberry pi to get the data of serial.
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Post by blade3609 on Oct 31, 2018 16:19:34 GMT
That was the plan to check outside at 9AM, but today no issues. I think its a glitch. It could have been a glitch but I'm leaning more towards a shadow.... The sun is moving positions pretty quick across the sky this time of year....
A couple of months ago I thought I had a glitch in my CC..... But I have become to believe it was more of a time of year problem..... I will know more when it comes around next year....
What was the glitch ?
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Post by tattoo on Oct 31, 2018 16:28:00 GMT
His voltage drop I guess..... It looks normal to me..... Panels don't just keep going up..... Mine are up and down all the time..... Heck it could have been something as simple as clouds....
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Post by playersz28 on Oct 31, 2018 16:29:16 GMT
Im using a raspberry pi to get the data of serial. Is that the code that lindsay posted up or your own? I have a Pi in my RV now that I use for system monitoring but it's not connected to the serial data port on the Rover. I'd like to be able to have my own data collection as well as the BT module connected so I'll look at a serial monitor (only want to read data flow). I also have two Arduino's in the trailer for other functions.
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Post by blade3609 on Oct 31, 2018 16:31:17 GMT
His voltage drop I guess..... It looks normal to me..... Panels don't just keep going up..... Mine are up and down all the time..... Heck it could have been something as simple as clouds.... I think you could be right. The CC does its thing to optimally charge the battery as it sees fit.
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Post by blade3609 on Oct 31, 2018 16:56:07 GMT
What setup do you have tattoo?
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Post by tattoo on Oct 31, 2018 19:56:08 GMT
What setup do you have tattoo? I have 8 100w panels, a 60A Commander CC. 6 6v 215ah deep cycle batteries and a 500w and a 2000w inverters..... I'm 100% off grid.... Everything that I have came from Renogy except the batteries and they came from Batteries plus......
This will be my 3rd winter on Solar.... I use about 550w of power each day... Sometimes more but never less.....
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