Posted October 23, 200816 yr Ok I bought a 2nd battery for my car and wanted to know if it would be ok if i ran 0 guage from front bat positive to rear bat positive. and just ground the second battery in the trunk. I'm also doing the big three.
October 23, 200816 yr if you run 0 gauge you should run 0 gauge grounds off both batterys. other wise the power wire will only be as efficient as the ground..
October 23, 200816 yr i do just as you stated.... i have a run of 0 gauge off the front cell... fused.......... fuse... rear bank.... and on the ground i have dual 2/0 to my frame in the rear of the car.. and then the big three.... you will be fine... some people say make a ground run.. but alot of people dont... i think its just diffrent strokes.
October 23, 200816 yr i agree run the + to + and ground individually make sure you tie down the 2nd battery and bolt the ground through the frame. i'm running 3 amps and i do fine with a 300 amp fuses from front to rear.
October 23, 200816 yr Author Thanks for the help guys. I'll be posting pics of my instal soon. get my Icon 15 on friday. Already got the sae 1000d and I'm building the box tomorrow.
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