Been out of the country for a month, weather all over the place and the T6 has sat doing nothing! So on a rainy overcast day thought would be a good time to check the batteries and circuit board.
Victron app showed both main and leisure batteries were charged etc.
So put the multimeter on the 2 batteries and the 12v panel electrics.
All showing over 13v so the victron mpp3 unit is doing its job!