First of all thanks for the great service! All questions were answered and super fast shipping! This controller has a solid construction and is waterproof. This is most important as it is used for multi-day kayak fishing and hiking. The first test with a 120W folding panel kit produced 23.56V open circuit with no load. Battery rating was 13.0 volts at 4.8 amps. The angle of the sun wasn't perfect, but it's quite respectable! Update 06/07/2020: I tested and charged RV batteries and kayak batteries over the weekend with great results. I was able to correct the sun angle for higher DC loading. The first shows 13.01 volts at 5.1 amps at 5:30 p.m. Then today at 11:00 am I registered 13.4 volts at 6.0 amps from the Acopower 120W panel, great! The 3rd photo shows the back panel caulk/gasket material and an open circuit voltage of 23.56V.
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