Put the Solar to the test.
So just a bit of back ground. I tried to dig up my original post for a reference but failed to find it. So the long and the short of it is: I bought a 20fq Creek Side and had 300w of solar installed ...
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I'm similar use but 520 watts with a 40 in led television. I have 2 strings of six volts. I have run on one string and touched 11.7 volts overnight. I like to stay above 12.1 or 12.2 so it takes four six volts for that. The key thing that is good for you is that 300 watts of solar is replacing what you used. If you go to 4 batteries you will stop going so low on the battery.
I do read over and over that best battery life is when kept above 12 volts to 12.2. If you have wet cells check the specific gravity from time to time to be sure your system is fully charging you batteries. They may appear to charge 100% but will get lazy as the sp drops. My solar controller is set to return 115% of my daily amp hour use. It makes up for system inefficiency and battery internal resistance. Your controller may have similar capabilities.
I do read over and over that best battery life is when kept above 12 volts to 12.2. If you have wet cells check the specific gravity from time to time to be sure your system is fully charging you batteries. They may appear to charge 100% but will get lazy as the sp drops. My solar controller is set to return 115% of my daily amp hour use. It makes up for system inefficiency and battery internal resistance. Your controller may have similar capabilities.
