Flore

Yes, I know, but I don't know anything about it, it's only now that I know there are a lot of Axpert clones. I will try to put the system in 8S1P, to see if there are improvements. It's not that I'm asking for more production than in summer, but in the morning, I can't get a 10W bulb to shine for more than 3 minutes. You have to wait 11am to have a little boost of energy. (There is nothing else on the installation) If I hadn't ordered this inverter and done this 7S2P setup, what would you have done with my 14 panels, which inverter? Thank you very much Coulomb

Hello Coulomb, I also have a problem with my inverter. I'm off-grid so it's complicated to have little or no energy ... I have 2 strings of 7 panels (210Wp, Peak Voltage 26.3V, Peak Current 7.99A, Open Circuit 33.3V) The inverter in question is a Superwatt VM II, 3kW, 24V battery. I suspect a clone of a Voltronic Axpert VM II 3000-24 When the sun does not directly shine on the panels, the inverter no longer charges, the batteries are weak, and the inverter drops the voltage of the panels. The voltage of the no-load panels: 205V and when I reconnect the panels to the inverter, the voltage varies and is not stable, 115V, 140V, 120V, ... In summer, there is no problem, but in winter ... I am also exposed to the west side ... Did I make the right choice of inverter, what could be the solution in your opinion? Thanks