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I purchased a Growatt 3000W model. I connected two 12V 200AH batteries in parallel and the AC input. I connected the AC input to the house and turned the unit on. The screen remains blank and there is no response in any way, fans nothing. Do I have a bad unit? I would expect it to turn on if...

Hi All, I have 6 x 200W solar panels. I have tested two banks of 3 panels linked in series independently. Both of the banks show current flowing on my Growatt 3000W system. I connect all 6 of the panels in series and I see current on my Growatt. I connected both of the banks of 3 panels in...

Quick question I have noticed multiple folks using a resistor to stop sparks when connecting a battery to an all-in-one system. I am connecting 4 x 200AH batteries what resistance should I use to charge the capacitors and stop sparking? Another quick one I have 6 x 200 Wat panels I plan to...