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    Casb0n's Avatar
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    Do I need a second battery?

    My 2 year warranty battery lasted 3 years and finally died. I went to the auto parts store to get a new one, and the guy there saw my subwoofer power cable and told me that it would be a lot better on the electrical system if I got a battery to put in the back. I told him that I only had a 350 watt rms subwoofer amp with a 30 amp fuse and he still said I should get another battery. Does this sound correct? 30 amps is barely more than the cigarette lighter fuse...

    By the way, my car has a 110 amp alternator I believe.







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    Re: Do I need a second battery?

    you should be fine with the stock battery only , if you see the lights dimming at night ,then you need to do the big 3 it will help




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    Re: Do I need a second battery?

    you can have a decent battery in the starter like around 850 cold cranking amps and that should be plenty.



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    Re: Do I need a second battery?

    I have a 600 CCA, I believe. Its around what the stock battery was. I did see lights dimming a few days ago, but that was right before my battery died and apparently my whole electrical system was on my alternator because the battery wasn't holding charge (according to the auto part store guy). Also, my ground wire wasn't attached good at that point either.




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    Re: Do I need a second battery?

    no battery needed




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    Re: Do I need a second battery?

    alright, thanks.




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    Re: Do I need a second battery?

    Quote Originally Posted by naughtyca View Post
    no battery needed
    I agree and concur...




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    Re: Do I need a second battery?

    If you have dimming you are running the amp into a hard clip. Gains or boost



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