Dead Battery My inverter did not charge batteries when batteries reached 49 Volts, which was setting in program 12 on inverter. First battery from inverter was completely dead, and 2nd battery was at 8% charge. I then set program 12 on inverter to 50 Volts, and 2nd battery started to charge. But 1st battery from inverter remained off and not charging. I have a fully 100% charged 2nd battery from inverter, while first battery is dead. I have turned on and off the breaker and on button many times. I have also pressed the reset button for over 10 seconds many times, and still have a dead 1st battery. What do I need to do for inverter to start charging 1st battery?

I have 2 Orient Power 48V 100Ah 5.12Kwh Powerwall LiFePO4 Wall Mounted Battery connected in parallel to 2 Orient Power LV6548 120VAC 48V 6500W inverters connected as US split phase. I don't have AC grid in connected. I am only pulling like 200 Watts at the most on the AC output side mostly from inverter 2. Every so often one of the inverters goes into failure and shuts down both my inverters. Sometimes the system restarts after a bit automatically, but others I have to manually turn everything off and on again. Both batteries show OVP, UVP and SCP errors. https://imgur.com/a/RPMiczW

I set up an OP6,5k inverter with the OP Powerwall. Thats all correctly configured and running well. But when I connected the Solar array to PV1, I only see about 12W coming in, (About 0.1A at 84V). The panels are (4x) Rich Solar Mega250's, in serial. They have a maxVoltage of 18.9v. and 13A. I suspect the panels aren't hitting the minimum startup voltage, and the numbers I'm seeing are some sort of MPPT voltage boost biproduct? The 84V number being reported is obviously not right. (Theoriotical max would be (18.9 x 4) = 75v, with a 2% drop for cable runs, etc.) I'm guessing its closer to 70v. Can I attribute that very low 12W number to not hitting the required startup voltage, or do I have another problem?