Hi , thanks for the update,Well, I have a 5048 MGX and so far I seems ok for me. No utilty charing, if not neccessary... But it's still not under full load...
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All-in-One 12/24/48V Packages
MPP and a few other manufacturers now sell a "complete off grid system in a box" that has: AC Inverter Solar Charge Controller AC Battery Charger Automatic Transfer Switch (if grid power is...www.mobile-solarpower.com
the powland seller to;d me that utility charging is needed so batteries are not left discharged for too long. As this will short the battery life. So, the setting OSO in menu, doesn’t actually stop utility power from charging batteries when in line mode. I have learned these line mode means when the unit is supplying utility power to load in bypass. None of this is clear in the user manuals.
I am looking at the MGX model now, I think it will support lithium, and that will take care of the discharged battery issue I think. At least the people at MPPSOLAR respond quickly, we just want the auto bypass to work, and we choose of batteries are charged or not.
let me know how yours works out, Regards Tony