For safety reasons I have connected a "de-coupler" main switch beween the batteries and the Multiplus.
The Voltage sensing wire + is connected directly to the battery bank + terminal
Now ... if I set the switch to OFF ... thus disconnecting the batteries from the Multiplus ... I still measure about 24V between the "off side" of the switch ( the cable going to the multiplus, and the ground)
I found that this stops if I disconnect the voltage sensing wire from the battery ...
Is this O.K. ... or should I connect the voltage sensing + wire not to the battery but also "after" the mains switch ?
Greetings from Amsterdam ...