The problem is the “intelligent” mode that interact with Shelly plug… seems not soo intelligent and after 2 week of correct work there are again problems.
Micro inverter max = 300 watt
Detected consumption 400 watt (continuous for 10h by a PDC boiler with 550 peak summing the rest of the house) + 30 watt base consumption
Resulting output… 210-220 watt…
In manual mode I can set 300 watt and the system correctly give a 300 watt output
keep this situation for 3h and the battery will be full activate the bypass and waste from 500 wH up to 1 kWh at day