I think the biggest advantage of a mobile battle station would be that you could manufacture them in a well supplied and secure location. then deploy them as needed to high risk areas.
another distinct advantage would be it can be placed along a chain of supply hubs and move along that chain. If the hubs were placed well outside of a system say several light days or weeks it would be extremely hard to accurately predict where the battle stations were at any given time.
another distinct advantage would be it can be placed along a chain of supply hubs and move along that chain. If the hubs were placed well outside of a system say several light days or weeks it would be extremely hard to accurately predict where the battle stations were at any given time.