DesertMax wrote:
why perhaps you wouldn't have 2 seperate systems.. so could I just keep the system I have after adding the 3rd 50W panel and then build up a new one with those more square 150 watters from eby... problem is that only the main system would be house..
You don't need 2 systems on one rig.
2nd towed rig or cargo trailer should be equipped with its own system including controller and batteries, to avoid running high amps through the coupling. If you think you need another system on that towed rig.
