Hi people, in short, I need your expert help. I have to install my new system in front of me soon. but now I have no plan if the schematic is as correct as I once drew it for you. I will bring the two possibilities as an attachment here. but now my real question: the two drawings differ in that the first one only has a 125 ampere fuse (which I have worth from one side) after the battery and the second m honor, due to the added battery. how many safeguards do I need at all, if the cable cross section does not decrease??? and now the second question: I need a separate relay. how do I build this (have never done anything like this)?? you can change the drawing(s) so that you think it is correct. furthermore I ask you to draw the separate relay circuit in the drawing (if this is possible). thank you already in advance!!! mfg