I replaced the OEM battery a couple months ago, big difference. Not only in power but in size. I couldnt find anything as tall as my stocker without getting it too wide (and expensive) either... So i put in some spacers and it looks ghetto as hell right now, but very functional. I'd love to put it in the trunk to free up engine space and distribute weight better.

I have a 4ga wire ran already through my car to the trunk for an amp i had back there. amp/sub died and i took it out. no desire to replace. I would prefer to leave that wire there and shorten it about 2 or 3 feet, since it's a little long. It's run directly from the engine bay, through the left channel of the car, to the back and the left side of the trunk. Should be 12-14 ft i believe.

using this chart:

So what i'm wondering is... i should be fine running the 4gauge, right? The alternator is at max 110 amps. I do not have anything aftermarket besides some HIDs (that run on lower amperage than stock halogens), the engine, interior lighting, the stock sound system, my carPC and monitor, and some red lights i have in the footwells and trunk... that's it. All should be well under 60 amps, let alone 110... i should be OK right?


Let me hear what you think.

Thanks for the suggestions/help.

 

I see no problems with it. Remember your inline fuses though at the battery and at the engine compartment (150 amps should do it on each end). If the 4 ga wire were to short say in the door area if the car were wrecked, you run the risk of turning the car into a big welder-massive fire, possible explosions.

Some don't deem it necessary, we do. I won't do a battery relocation here without it (or add second battery). I would rather pass on the job...

 

yeah, fuses are a must and i already have one end covered. Luckily, four years ago i bought an in-line fuse just in case.... Now i actually have a use for it!


Cool, just wanted to make sure that others thought the load would be OK over a 4ga line. Thanks!

 

I'm assuming your 4ga is copper and not CCA? If so, I agree with the above.

 

you should be fine, i like to use circuit breaker under hood and by battery in back, this way if it pops? and you figure out why, you can reset and you are not stranded looking for a fuse. the largest electrical draw will be from your starter,

 

Yes, good copper.


I used a circuit breaker once... till it "broke" too many times then REALLY broke. lol.

I'll stick to the fuses. The wire is run completely through grommets and after i build a carpeted box for the battery and mount it properly -- it should stay 100% put. I'll be fine.

Cool, thanks guys.