Review on 🌞 EPEVER 100 Amp MPPT Solar Charge Controller 200V PV Input Negative Ground: Efficient Power Management for 12/24/36/48V Battery System - Tracer 10420AN Series + MT50 Remote Meter by Tay Fair

update July 9th. The seller replied to replace the defective unit. More information will follow later. Maybe it was just bad luck or maybe it was just a bad unit. Worked like clockwork for almost 3 weeks. I have a 48v lithium battery 1220 pv 114 volt 11 amp 3000 watt pure sine wave inverter. I set it up with a PC program, it worked fine and I thought it did a good job. No big loads just my occasional saws, chargers for my tools and a couple of flashlights, the bare minimum of juice really. The battery and controller stayed cold, while the controller stayed slightly warm. I checked every setting very carefully on both the PC and the MT-50. I had 50 -57.6 volts using the battery and I had BMS installed. It just didn't work anymore. No screen or backlight on the external display. MT-50 only shows "connection". But I hear a click every time I connect the battery. Another review will follow after I see what's going on.