Multiple grounds

[01 S 10 10+ year member]

If i did not have enough wire for a solid negative run to the rear, would it do any harm using two pieces of wire and ground them to a central location on the frame? still connecting the front battery and the battery bank in the rear?

heres a pic:

where i have the arrow pointing is the location im talking about on the frame. im not sure if this will cause a "ground loop". i will of course have 1 solid positive run, but could i run the negative that way?

i havent heard or seen this done before, it would save me from having to buy more wire.

thanks,

Cody

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[chaunb3400 10+ year member]

just get a butt connector and connect the wires

 

[Supergumby5000 5,000+ posts]

why not just buy another run of 1/0.... from the looks of that battery bank, i wouldnt half *** this part of the setup

 

[muskyhunter567 10+ year member]

that is the textbook description of a ground loop, the downside of that is you have more connection points to lose voltage and you could introduce powerline noise into your stereo, i would get a big welding butt splice before i grounded again, but its your call,

 

[IDSkoT 5,000+ posts]

A cheap fix is simply to get a brass bolt with a nut (and a washer, if you want) and ring terminal the ends of both wires, and just connect it like that and wrap it in electrical wire.

But, that's the cheap fix.

 

[TNTR70 10+ year member]

http://www.stingerelectronics.com/productDetails.aspx?delineate=159&CategoryID=-1&ParentID=-1

 

[01 S 10 10+ year member]

i have a bunch of copper rings that are about 2" long that i was making lugs with. i could just butt two ends together and crimp and not ground to the frame.

i was trying to save from having to buy 80'+ of 1/0 for 4 runs to the rear

 

[01 S 10 10+ year member]

what it boils down to is that ill have 4 2/0 runs (2pos/2neg) of welding cable from my optima up front to 4 batcaps in the bed, running ~7kw.

ive seen people run their grounds all the way back up front and not ground the rear batteries directly down to the frame... but with this much power im going to run, i dont want to lose any voltage due to bad grounds. can 2 grounds up front on the frame in the same spot be good enough for all this?

im thinking about running all the wire and still grounding the batcaps in the bed directly down to the frame as well as the ground up front on the frame... will this work best?