grounding monoblock to rear battery

[knightsdaze 10+ year member]

I've read the dual batt sticky, and I've followed it to the letter, but I don't know why I should have to ground my Orion hcca 2500 to the rear battery's neg? I have a 90' Jeep Wrangler, and I OVERKILL on 1/0 awg grounds. I have 2 ground blocks drilled, and bolted on the rear chassis and 1/0 gauge to the frame from there. What's wrong with just grounding all 3 of my amps to the block on the chassis? I came up about a foot short on 0 gauge ground wire or I wouldn't be asking. What a f****n ball buster. Any input would be much appreciated. Im outside chipping away at the wiring, and I'll check back periodically. Thanks guys.

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[mylows10 5,000+ posts]

you can but ,the battery needs to be grounded too

 

[knightsdaze 10+ year member]

It's grounded thru the chassis to the frame bro.. I could understand the tutorials point if i had a newer car, but Im working with an accessible steel frame, and whats a better source for ground than that, ya know? I appreciate your response. I just wanted to make sure there wasn't some other reason. thanks

 

[mylows10 5,000+ posts]

just have to complete the circuit thats it

 

[winkychevelle 10+ year member]

i would actually ground to the batt it help the batt buffer the current draw by lowering the resistance within the circuit though the difference will more than likely be negligible

 

[knightsdaze 10+ year member]

I just found a 7 ft. piece of 1/0 awg ground wire coiled up under my passenger seat.. sweet!.. drinking and wiring aint illegal, but i sure do lose a lot of stuff. thanks for your input boys. I'm gonna just run it to the batt, cuz i got enuf wire now.

 

[winkychevelle 10+ year member]

I just found a 7 ft. piece of 1/0 awg ground wire coiled up under my passenger seat.. sweet!.. drinking and wiring aint illegal, but i sure do lose a lot of stuff. thanks for your input boys. I'm gonna just run it to the batt, cuz i got enuf wire now.

just take the extra you found and double the ground run for the batt. its prolly not needed but i LOVE overkill lol