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Thread: Second Battery for Amplifiers

  1. #91
    FST Senior Member boostinburgh's Avatar
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    I’m hoping I can make the 19’ work. I made the 17’ crutchfield 8 awg kit work so I should be good I hope...

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    FST Junkie! 1LoudST's Avatar
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    yes, run a piece of power wire from the negative terminal of the battery to the body of the car (which is 1/3 of the "big 3").

    Quote Originally Posted by boostinburgh View Post
    I’m hoping I can make the 19’ work. I made the 17’ crutchfield 8 awg kit work so I should be good I hope...
    yeah, most packaged amp kits are 17' which is almost always enough for anything short of a large SUV. if you made that work, then you should have any problems with two extra feet.
    Last edited by 1LoudST; 05-06-2019 at 08:29 PM.
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  3. #93
    FST Senior Member boostinburgh's Avatar
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    Quote Originally Posted by 1LoudST View Post
    yes, run a piece of power wire from the negative terminal of the battery to the body of the car (which is 1/3 of the "big 3").

    Quote Originally Posted by boostinburgh View Post
    I’m hoping I can make the 19’ work. I made the 17’ crutchfield 8 awg kit work so I should be good I hope...
    yeah, most packaged amp kits are 17' which is almost always enough for anything short of a large SUV. if you made that work, then you should have any problems with two extra feet.
    Should I attach the 1/0 ground underneath or on top of stock ground?

  4. #94
    FST Senior Member boostinburgh's Avatar
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    I guess I’m a little confused. Do I eliminate the stock ground, or add an auxiliary ground on top of stock ground for the battery.

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    FST Junkie! 1LoudST's Avatar
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    I almost always leave the stock battery ground in place and just add on to it, unless specifically requested or the entire engine bay is getting rewired to be as clean as possible.

    as far as under or on top? shouldn't make a difference. often factory grounds are not made to clean metal. for best performance, you should clean down toi bare metal and have your heaviest ground making the most contact, however this can create a rust opportunity so I would either use some dielectric grease or painting over once the bolt has been put back on.
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  6. #96
    I spend too much of my life on FST! Kranny's Avatar
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    never remove factory wiring for big 3. always add
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    FST Senior Member boostinburgh's Avatar
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    How do you guys cut your fat 1/0 awg?

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    I spend too much of my life on FST! mitch808's Avatar
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    Quote Originally Posted by boostinburgh View Post
    How do you guys cut your fat 1/0 awg?
    Something like this:
    https://www.parts-express.com/9-1-4-...utter--360-624

    Which I'm sure there is a $5 version at harbor freight, that is near a single use tool.
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  9. #99
    FST Junkie! 1LoudST's Avatar
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    yes, that is the exact same kind of tool that I use.

    WARNING: the harbor freight tool is garbage and doesn't make clean cuts. I started out with that one since I figured it would not get used that much but after I got a good one (klien) I found myself using it all the time to cleanly cut wire. even if its just 4ga or speaker wire (12ga-8ga)

    I have this one
    https://www.amazon.com/Klein-Tools-H...-tools&sr=1-15

    one of my old employees just got the snap on compact version like this one and its amazballs,, that thing is so sharp, it feels like it would effortlessly cut through a rod of tungsten carbide...
    https://store.snapon.com/Miscellaneo...--P634307.aspx


    what ever you do, dont try to cut it with normal dikes/diagonal cutters as it will usually mess up the end since you will have to try to snip through it with a couple of tries and then its a pain in the ass to put rings/terminals on the end.
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  10. #100
    FST Senior Member boostinburgh's Avatar
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    Thanks guys. Yeah I learned not to use regular dikes the other day. Was trying to do this Saturday and didn’t order the cutter. Guess since the harbor freight one won’t work (harbor freight down the road from me) I’ll have to order online and wait another week until I can install my 1/0.

 

 
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