I have been chasing this issue for several weeks and can't seem to figure out why my MultiPlus 24/3000/70 isn't charging.
System:
2x 300Ah Lithium batteries in series. (24V system).
1300W solar
SmartSolar Charger MPPT 150/35
BMV-702
Venus running on a Raspberry Pi 3B.
MultiPlus 24/3000/70-50 120V connected with USB VE.Bus
The MultiPlus provides pass through power but will not charge. As you can see from the VRM widget, the AC fluctuates for demand but never charges while DC usage will drain the battery over night and only charges when the solar panels are active. Charger settings posted below.
Please tell me I'm missing something obvious.