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Post by shanep85 on Jun 10, 2016 9:41:24 GMT -8
I bought a renogy 200 watt 12 v system with a 30 PWM wanderer controller for the top of my sprinter van. It's hooked to two 115 amp deep cycle batterys from tractor supply in parallel I've got a super Kool mini fridg hooked to the batteries. That has s 6 amp current at 12 v. My input from the solar reads that it's 19.92 coming from the solar, then the output to the batteries reads 11.64 and the batteries read 11.64. What's happening is when I Hook the mini fridge and let it run after about 6 hrs it's drops the battery bank to less then 10. So the fridge is draining the batterys faster then the solar is charging. I don't understand this, my first time to solar
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Post by Admin on Jun 10, 2016 15:38:48 GMT -8
Hello Shane,
This system should be able to sustain your fridge for those 6 hours. In fact, the Panels seem to be outputting appropriate voltage at 19.92 Volts. One problem is that you mentioned a battery voltage of 11.64, which is a 20% state of charge and overly discharged. I would recommend doing is making sure your batteries are fully charged (12.7V or higher) before you start running the Kool Mini off of them.
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Post by spiderbob on Jun 10, 2016 15:48:31 GMT -8
As Ad Admin said, you battery has to be fully charged going into the use of the AH away from it. It will take several days to fully charge your battery with the solar, as you are only getting max output at high sun if it is sunny out. Put a tester on the battery you should be charging at about 13.0v at high sun. If you are using the frig starting in the morning along with the charging, then you will be charging even at a lower pace as it will be supplying both the battery and the frig.
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