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  1. #1

    Default Battery spark question

    My four year old battery finally gave up the ghost, I got a new one and when I disconnected the old one I noticed a slight spark. Got he same spark when I connected the new one, I hooked up my volt meter it showed about 1-1/2 volt draw. I started by pulling fuses and relays and watched it slowly trickle down to -0-, Hooked the batter post again, started it up the went through the drill again. Pulled the ground hooked up the meter and just watched it, about two minutes it did the same drop to -0-. Is it a norm to see the draw then leak down to -0-??

    Phil
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  2. #2
    Sr. Engineer Dana W's Avatar
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    Default

    Yeah, it's normal, but I am not sure about the voltage level, The computer (and security system, if you have one) needs a small constant charge to stay alive. I hope you are getting the spark from the neg cable. Of course you know to disconnect that one first, and connect it last, right.

  3. #3

    Smile

    Quote Originally Posted by Dana W View Post
    Yeah, it's normal, but I am not sure about the voltage level, The computer (and security system, if you have one) needs a small constant charge to stay alive. I hope you are getting the spark from the neg cable. Of course you know to disconnect that one first, and connect it last, right.
    Yup 30 years a marine mechanic.

    Phil

  4. #4

    Default

    i would say its normal, the BCM and other moduals need battery juice just after shut off. Some vehicles we have to wait half hour until we can do a draw test on the system

    2003 Z71 Silverado LS
    Access roll up cover
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    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  5. #5

    Default

    I agree with you guys. Normal.

    Quote Originally Posted by Z71_guy View Post
    i would say its normal, the BCM and other moduals need battery juice just after shut off. Some vehicles we have to wait half hour until we can do a draw test on the system
    Please Tell Your Boobs To Quit Staring At My Eyes

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