Starter useing back batteries???

[BassAddictJ 5,000+ posts]

well starter can draw a shit ton of current for that instance where it gets the engine going. thats why its best to have abattery right there....

what if you have 2 BIG batteries (I.E. 2 powermaster d3100's) and like 8 runs of 1/0 and got those to connect to the starter, could the starter work off the back batteries and not be harmed? how many runs would i be ok with if i dont use all 8 for this application? if this were to work how should i wire it up best?

ikf i can get my 2 big batteries in the trunk and still successfully start my car without anything being harmed, thatd be a tremendous help

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[TIeclipseMOJO 10+ year member]

ive seen someone start their car off 2 kinetik 2400s in the trunk, only one run of 0 power and only chassis ground. your stock starter probably only has 8 or 6 gauge wire, 0 is enough for a longer run. multiple runs are to get the current from your alternator to your batteries

 

[mlstrass 5,000+ posts]

If you have the BIG 3 up front starter "should" take the path of least resistance which should be your front battery. Otherwise an isolater might be needed...