I have the following simple setup with ESS Assistant in which I charge the battery from the grid during low rate period at night and then use the battery for the house loads during day time.
I encountered a problem in which the SoC shown in the VenusOs screen jumped from 69% (Main On+Absorption LED “ON”, Inverter On LED “Blink”):
suddenly to SoC 100% (Main On+float LED “ON”, Inverter On LED blink):
while the battery was being discharged!
The battery pack has its own BMS and the BMS has no connection to the MP-II.
I set the "State of charge when Bulk finished " to 90% in VEConfig and it worked properly.
I set the "Minimum SoC (unless grid fails)" in ESS to 10% and it worked properly.
The “Float Voltage” set in VEConfig was 52V. The above problem occurred at 53.2V .
Any advice on:
Why the Float LED suddenly lighted up?
Why the SoC suddenly jumped to 100%?