I've searched extensively and am still confused. In this link @markus suggests "switch to charger only and now the AC shore supply will still be on and the inverter will be off, leaving ...AC shore supply available for DC charging and AC power...".
Another post from @JohannesBoonstra to this blog states "[for] ... Multi and Quattro the inverter always works (and the ACout is powered) when the unit is charging"
However, currently the experience I'm having with my multi (purchased Sep 2021) is that the ACout is only available if the unit is in the full on mode. The 'charger only' mode eliminates ACout to the receptacles. The problem with the full on mode is that if the shore power is unknowingly disconnected, the batteries drain very quickly due to the standby current draw. I did try the AES function but the modified sine wave didn't help much and the AES surge mode caused issues with the microwave.
What I want is to configure my multi so the following happens:
* When shore power is connected/ON (120V up to 15A)
Ability to use ACout to power receptacles
Inverter is off (eliminating standby current draw)
Battery is kept full or charging
* When shore power is disconnected/OFF
Battery is prevented from discharging
Inverter is off (eliminating standby current draw)
(which also means no power available at ACout power receptacles)
To do this what is the configuration I need? @markus references an article suggesting setting the multi to 'charger only' and the current to zero. Can someone clearly confirm this and whether I need to actually purchase a Digital-Multi-Control to achieve the above behavior? Are there other alternatives?
One would think the default behavior with a 'charger only' configuration would be to allow any ACinput to pass through (if present). In the 'charger only' configuration it does not make sense to me that the current limiting function should have any bearing on pass-through ... a value of zero seems to imply there is no current available/allowed for charging (i.e. the multi is equivalent to fully off). Any explanation as to why this is not the case is greatly appreciated.
thank you.