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Thread: Am i pulling too much curent?

  1. #1
    Join Date
    Apr 2012

    Am i pulling too much curent?

    Hi, i have a VW Urban Fox '06, i do not rightly know what the alternator is capable of, i have two amps in the car, a 150watt rms and 300watt rms, no caps.
    When the engine is off, the battery is at 12.5v, at idle it is 14.3ish v and when it is idling with the music as loud as i will ever play it(otherwise it is uncomfortable) the potential across battery+ and the chassis usually stays within 14.1-14.4v with the lowest it ever momentarily dropping to around 13.9v, am i pulling too much current from the system?
    I have also ordered some parts to assemble my car pc, consisting of a netbook that usually has a 90w charger(no battery installed, i think it will pull less current that way?)
    I am also going to buy a 7" lilliput.
    I know it is a small car but can anyone tell me what the signs are that i am drawing too much current or if i need a new alternator?

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    No, you're not pulling too much current.
    You'll know if you are when lights start dimming on hard bass hits.

    With the system you specified, I don't see that happening.
    Have you looked in the FAQ yet?
    How about the Wiki?

    Under normal circumstances, a signature would go here.

  3. #3
    North of the land of Hey Huns
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    Join Date
    Jun 2004
    Westminster, MD
    Signs you are drawing too much: Your battery voltage steadily drops until the car shuts off. Most modern vehicle alternators can handle the kind of power you're using easily.
    "stop with the REINSTALLS, what do you think we got some lame-o installer!!!" - mitchjs
    My Shop

  4. #4
    MySQL Error soundman98's Avatar
    Join Date
    Jan 2008
    on the border of northern IL/IN
    if your really worried about it, install a volt meter in your car. with your car, i don't see any reason for worry until it drops below the 13.5v mark.

  5. #5
    Join Date
    Apr 2012
    Alright, thanks everyone for your replies!

    Sent from my HTC Sensation XL with Beats Audio X315e using Tapatalk

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