Wiring/control for dual alternator setup in patrol

[BigRAWesty]

Cable size is fine, 70mm2 from memory and good connections. Its a simple case of 100amp supply to battery and 400amp drain by winch, so the battery volts drop and - you know the rest. Matching the in - to - out better is my aim.

Interesting regards the welding as I do have a 200a Uniwelder alternator here and have found it next to hopeless for welding, even on 1.6mm rods. It was sent back to Uniwelder in WA for assessment and they said its fine, however it burnt out the windings soon after, was repaired by an auto elc and has sat on the shelf ever since. i think it might have been operator error, but can't be sure as they are pretty straight forward to set up and other people swear by them. Anyway I moved to a 24V mig welder from the US for welding and that works fine.

Yea right. Definitely something wrong with it.
But yea 2.5 rods only need 70A for a good weld..
3.2 are around 100A.
We use cigweld 175 welders and I can run 4mm rods in it.. maxed but it welds nice