Upgrading battery cables

[Jude]

I can get my hands on some 2/0 welding cable from work but I need to let the guy know what length I need. How much would I need for my 3/4 ton K2500 with dual batteries?

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[LordFinesse]

nobody can tell you, you gotta measure its super easy

 

[Jude]

I realize that. I work offshore and I cant get to my truck. I was hoping someone had done this before. I jus need an idea of how much to get

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[bluex]

I put new cables on mine but I have only one battery on the passenger side.

battery to starter was 48"
battery to alt was 40"
Battery to fuse block on Dr Side was 95"

I haven't replaced the battery ground cable yet but 36" is probably enough for that.

 

[LordFinesse]

For sure, i got about 5ft of black 1/0 and maybe 6 or 7 or red (i have probably a foot er 2 left of the red) and i did new cable from the batt to alt, batt to chassis, replaced the stock ground, and added another from the block to the frame. I would recommend doing 1/0 the price difference is small from 2/0 to 1/0 and its all about current flow more is always better

 

[Swims350]

I used 10 ft. on my single battery, 5 for the hot and 5 for the neg.

I'd say get like 30-40 or more, then you'll have plenty, do the big 3, battery hots and grounds etc.