Does the new slim version of Multiplus has a trickle output (particulary the 12V 800VA version) ?
There is a cable shown on the Victron Scheme: https://www.victronenergy.com/upload/documents/1.2KVA-MultiPlus-230V-system-example-with-BMV-Cerbo-GX-Touch-50-Argo-Fet-and-MPPT.pdf
but I can't find a terminal for this cable in the Multi: