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Topic starter
December 9, 2025 4:32 pm
Latest firmware on all batteries. ceaa-0507 on 12000xp
- I have 2 12000xp in parallel and 6 eg4 wallmount indoor batteries.
- They are operating in communication mode for state of charge.
- i have it set to charge from 20% to 60% SOC @10amp for each inverter.
SOMETIMES, not all the time, BUT SOMETIMES when finishing the AC charge cycle ( i have it set to stop charging at 60% SOC), it will swap over to PV Off-Grid mode (basically wont charge my batteries) rather than the PV+BAT Off-Grid mode. I am able to force it out of PV-Off-grid mode by hitting the "start quick charge" button in the app
This is easier to visualize with the solar assistant chart.
The end result is that I have to sit here and babysit this thing or i lose out on a bunch of PV power! please help!
This topic was modified 2 days ago 3 times by clarktheshark
Topic starter
December 9, 2025 4:44 pm
I do notice that the Batt Status goes to "2". unsure of why the batteries are affected by it swapping over.
Topic starter
December 9, 2025 5:01 pm
On second look, This appears to be a battery communication issue. Any ideas as to what is causing that? It appears to happen when PV is really charging big time.
I wonder if interference or something on the CAN ethernet wires? anyone had that happen before?
Topic starter
December 9, 2025 7:14 pm
The inverters are set to LITHIUM 0 (these are 12000xps, there isnt an option for eg4)
The batteries are set to EG4/Lux
@eg4eric I checked every battery. they are all dipswitched correctly 1 through 6.
They are all on the latest, correct firmwares (thank yall for sending the required cables to update!)
Again, 99.9% of the time, the communication is perfect. Sometimes it drops out and it seems to happen when the solar energy is really pumping.
