Hey, I have the multiplus 48/500/6-16 and it is currently connected to the Grid and everything runs great. and when I cut the power from the AC input,Multiplus turn off and LED's are off .
(if I want to run Multiplus just with batteries, does not work )
batteries are full charged 100%, and When I tested the voltage on my batteries ( Or on the multiplus DC input ) I get 50,20V.
when the AC input is Connected ( with Grid), I can charge batteries and also can descharge them in AC load (AC output from Multiplus)
I did not have this problem last Week.
Please if someone can help it would be great. Thank you.