Multiplus II, Solar, DC-DC converters

In my ideal world, I would have the following methods of keeping my house batteries (24V, 240Ah AGM) in good condition:

  • plug in and charge through the Multiplus II
  • charge through Solar MPPT
  • charge through DC-DC from a 24V truck

Still at design phase but is it possible to set these up so that they don’t undo each others work and over-charge the batteries?

Ideally any switching would be automatic but happy to have manual selection if that is the simplest solution.

Many thanks