2/0 shca cable good for big 3

[08accordcustom]

what is the best aluminum for buss bars

[08accordcustom]

I would rather save the 2/0 for longer runs because 1/0 would be plenty for the big 3 unless you are running multiple HO alts. It can't hurt but it is a waste of 2/0 if you could use 1/0 instead.

Running 2/0 to the back and 1/0 from the battery bank to the amps is perfectly fine but if you have enough 2/0 you can use 2/0 reducers at the amp end so you can have the best wire all the way into the amps. Thats the way that I would do it but 1/0 works too.

What amps batts and alts are you running?

i would be using a xs power d2400 and a xspower d3100 and a mechman 320a

[Pro7]

what amp?

If it were me I would rather use the larger wire into the amp and use the smaller stuff for the short big 3 runs. If there's a stretch of the big 3 that is 6' or so then 2/0 would probably be more needed there especially with a 320a alt. Nice pick on the alt by the way.