Battery jumpers and lenghts.

[sdold]

So to confirm, there is NO need to adjust cable size in a series bank for longer runs as I described before?

No, because the currents in all batteries in series configuration will be the same. The extra resistance of the longer cable will have the same (negligible) effect whether it's at the positive end of the string, the negative end, or somewhere in the middle.

[Sunking]

No, because the currents in all batteries in series configuration will be the same. The extra resistance of the longer cable will have the same (negligible) effect whether it's at the positive end of the string, the negative end, or somewhere in the middle.

Ditto, what he said.

[Jemplayer]

Ditto, what he said.

Thanks to you both..I knew this, but wanted to hear it from someone knows more than I do. Self doubt is a terrible affliction 😁 Thx.