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So I have a Epever Triron 40 amp charge controller and whenever there is no power coming into the unit from the solar panels and the outgoing power (2 usb ports) from the charge controller isn’t on, it makes the high pitch humming sound, basically when power isn’t going into the unit or going...

After weeks of research I can’t find a solid solution to seal my cracked solar panels, majority say to use polyurethane products but most of them are not made for sticking to glass and I’m worried about adhesion problems, and most polyurethane products that are exterior grade are oil based and...

So I have a 2000w inverter that peaks at 4000w surge, and a 24v 100ah Redodo battery, I’m having trouble getting the compressor to kick on my window air conditioner unit that’s 12,000 BTU I looked in the manual and it’s peak amp rating is 49amps at 110/120v! That is almost 2000w surge more than...