Apart from the engine alternator some of us fit PV panels and/ or wind or towed generators.
My setup includes an expensive solar panel charge controller an alternator and I have an alternator controller to shorten charge cycles, I removed the split charge diodes in favour of a VSR recently. If I fit a wind or towed device things get even more complicated.
It struck me that if I start up the engine mid morning the solar panels are already kicking out 10 amps the multi stage solar controller is suddenly going to see a change in battery voltage and that will screw up its charge cycle. Similarly the alternator controller will see the PV output and wont kick out as much current as it could. Again if I fit another generator then it confuses the system even more. Of course the mains battery charger has it's own agenda too when I hook up the shore power.
Is there a device that takes any number of 'charge sources' and combines them into a single charge controller? I was thinking of a black box that had two battery outputs and say 3 inputs for alternator, solar and wind/toed generators; it might have a mains connection too so the same box did it all. It could also act as an alternator controller to get the best out of the alternator.
Only 1 3 or 4 stage charge controller would be needed and the input power could be combined and fed to the batteries in the most effective way.
Does such a device exist?