INVERTER ANENJI jako Tylko Ładowarka. Wyłącza się bez energii z PV i nie rozładowuje banku energii;)

Hello, the video shows a cool way to use an inverter: when the switch is turned to the off position, only charging is enabled. When the sun goes out and the voltage drops below 120 volts, the inverter/charger will turn off after 2 minutes and will not draw energy from the "power bank." I use this when I don't need 230 volts at the output, there's little sunlight, and I just want it to fully charge the power bank within two days, for example. Power is low in November. In the video, I talk about hidden functions after pressing the up or down buttons for a while. Does anyone know what program 01 is for, from 5 to 300?