These panels look nice and work exactly as advertised. They were easy to hook up and the instructions were very clear. I installed each of the batteries in my boat to keep them charged during storage. They were installed in just 2 days and both were rainy and overcast. As long as the LED indicators show that they are being charged. I plan to install a small watt hour meter when the weather clears up to see what kind of input I'm getting. After 2 days of sunlight, the controllers will display a solid green LED indicating the batteries are fully charged. It should be noted that the batteries have been sitting for 2 months without being recharged, so I am very happy with the performance of these panels. I bought these specifically to keep my batteries fully charged when in storage and they seem to be handling it well.
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