Mike Hewitson

Thanks for this. By the way, I think the mystery column is the %power. It corresponds quite closely to the actual power draw.

Hi Shadders Did you have any joy in identifying the unknown field? The SOC column in your log looks very similar to mine, showing the SOC dropping from 100% down to about 50% the moment the GRID power stopped. Any idea on what is going on there? Thanks for the column info, it's a great help.

I may be completely off the trail, but my guess is that you selected the battery type as PYL? If this is the case, the PYL settings for most versions of the firmware set the max and float voltages to be the same (settings 26,27). Many people have the same issue. The only way around it that I have been able to find is: 1) Change your battery type to USE and set the float voltage yourself, or 2) I see lots of mentions of this being addressed with later versions of the firmware. My inverter/battery setup (Axpert VMIII 3KW/Pylontech UP2500) did exactly the same. I adjusted the voltages according to this post and its being behaving well. I am attempting to get updated firmware from the supplier, which is taking a awhile.