New yacht install - all new kit. In process of commissioning.
System -> 4x 330Ah Start Lithium, connect in parallel to Lynx Distributor, connected to Lynx Smart BMS, connected to Distributor on other side. Cerbo GX and Touch 70. No loads, no charging devices attached the the final distributor.
This is what the GX Touch is showing - and it looks normal.
This looks as I would expect to see, battery showing -0.4A and -5W and the DC Power showing 5W - which is about right for the consumption of the BMS, Cerbo and Touch 70. So... all good so far.
I have then attached a Victron Smart Charger 5A - to the distributor on right of BMS - to slowly charge the batteries, very slowly for the first time and balance them.
I see this...
Prefect - the DC Power is now showing -59W as power is going in to batteries.
Next - I have disconnect the small 5A charger and have attached the new Multiplus II for the first time, Connected to the distributor on the right of the BMS. Connected VE.Bus and +ve and -ve DC wires only. No AC connections made at all. Not connected to mains AC and no AC loads connected.
When doing this I would expect to see the DC power be shown as a load. I would expect it to be about 5W for BMS, Cerbo and Touch.
This is where it gets strange....
DC power has changed to a -VE number - suggesting is is being charged with 6W. The AC loads look normal - 16W for the Multiplus - inverting - but idle.
Can anyone suggest / explain what is happening here ?
Kind regards, Tim