Couple questions around making cables

[morrow21]

Good/bad/good/bad news. I'm installing a new controller thanks to scottyb :) ! The 4ga wiring I was going to make due with until my account replenishes turned out to only be about half with the other half 6ga :( . New 2ga :) ! No budget :(
So might be making my own with the help of a friend. 2 questions.
How much longer should the battery cables be for 48v vs 36? I'm currently running 36 but plan to go to 48 when I need new batteries so want to plan ahead
Secondly, friend has 3/8 tinned copper lugs already, are those ok to use or should I only be using 5/16?

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[mutant]

i made my own lugs(copper tube)
cable(2g,600 strand count welding cable)
hammered and soldered ends to cable-then put high quality shrink wrap on ends.

dont know about the tinned lugs-someone will have a better opinion than me...

job turned out ok-but my buddy bought a cable set from scottyb and i will not waste my time making my own again-the time it took to do my own high quality set-i could have made enough $$ to buy scottyb`s cables set and an hd f/r switch,and had a better set of cables....

[JohnnieB]

Maybe the attached drawings will help you estimate the lengths needed.
First one is a 6 X 6V pack and the second is a 6 X 8V pack.

The 3/8 lugs only have 0.135 Sq/In less contact area than the 5/16, so they will probably be okay, but use the 5/16 if possible.

[morrow21]

Thanks for the help to both of you. I would love to get a set of scotty's cables. He has been great to deal with and I'm very happy with him, just don't think I can squeeze the budget anymore.

[Volt_Ampere]

The 8V batteries have the lugs on the same side where as the 6V batteries have the lugs on opposite sides. That is why there is a length difference. Try to find a 48V cart and measure the cables or you will have to guess ad the additional lengths needed.