So far it works as advertised. I wish I could afford an MPPT controller but this little box does the job. I live in my truck and have two Siemens SP75 panels running through this controller which charges three batteries in the back of my 94 Chevy S10/Tahoe. The plaques were gifted to me by a friend, for which I am sincerely grateful. Three batteries are car batteries, different CA and CCA, one is sealed, the other two are not. (Yes I know I should have a deep loop but you use what you can). I set the float voltage to 13 volts and the disconnect to 12 volts. So far, so good. For now. Yes, I would buy this product. again. Yes, I would recommend it to others.
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