in a camper or boat, sometimes the multiplus buzzes a lot when it is in the final phase of charging and this is annoying. I solved it by paralleling a bluesmart that I use at night by turning off the inverter and bypassing it with a switch. In addition, if I only put it in inverter mode, it no longer reads shore voltages and does not seem to work as a Power assistant. It would be nice in VenusOs to have the possibility of having 3 icons: one turns on / off only the inverter function, one that of the charger and a third icon that turns off turns everything on in one go. so if you leave the inverter activated, the Power assistant also works without necessarily using the battery charger function.