Big 3 with 2 batteries??

[farmerehsan 10+ year member]

I drive a diesel HD it has 2 batteries in the engine bay

how do i go about doin that?

to one battery or both?

Click to read more...

 

[CRXBMPN 5,000+ posts]

i'd do a big 3 plus a few extra wires :-D

so yeah

 

[Enellz 10+ year member]

i'd do a big 3 plus a few extra wires :-Dso yeah

x2 //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[BassMechkanic 10+ year member]

add extra grounds from battery - to frame and add extra ground from alt bolt to frame.

 

[x1le 10+ year member]

It depends on how the batteries are wired....

 

[farmerehsan 10+ year member]

im not sure how they are wired

 

[FurbiesAndBeans 10+ year member]

I used to have a diesel f-250 and i say just do both since they're really easy to do lol

 

[Pioneer~Saturn 5,000+ posts]

im not sure how they are wired

look at them //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[newdude 10+ year member]

both

 

[DNick454 10+ year member]

Do a typical Big 3 install to one of the batteries then simply wire the other one in parallel (bat 1 positive to bat 2 positive; bat 1 neg to bat 2 neg) then ground both the batteries to the chassis (utilize the same point to avoid ground loops).

 

[NhustlaR 10+ year member]

ehh wire it the same exact way it is now, but with 1/0 wire.......there's one on the drivers side and on on the pass side right?

 

[farmerehsan 10+ year member]

yes thats hows it is

 

[Anton Miller 10+ year member]

go from battery negative to battery negative. and use the shortest amount of 1/0 wire you can. its the best way. and if you feel like it you could also go from each battery to the chassis then go negative to negative. IMHO its the Best way to do this.