Minimum draw required

What’s the minimum grid draw required before the battery will kick in? I seem to get the solar covering everything bar 30-50W, the remaining is then supplied from the grid. (Obviously on a day where there is loads of solar if isn’t a problem). Appreciate that’s it’s minuscule but just wondering if there is a minimum kick in value rather than the battery sitting there idle

100W to wake up, once "Locked on" around +/- 50W is normal.
New Firmware once released is much faster and can maintain grid neutral pretty well

TheDragon (GivEnergy)

So does the wake up level change with the new firmware or only the reaction speed/time?