Battery Power Issue

Discussion in 'Pickups & Electronics [BG]' started by bongostealth, Jan 12, 2013.


  1. bongostealth

    bongostealth Supporting Member

    Joined:
    Jun 3, 2011
    Location:
    Atlanta, GA
    I have a bass with an EMG BQC system and Seymour Duncan Basslines active soapbars. The whole system works great but I noticed that it eats my batteries within a couple of days. If I install new batteries (Duracell), play the bass for an hour, and then put it away for a week or so, the batteries are completely dead the next time I pick it up. I've had this same pickup and preamp combination before and I have never had this problem.

    Everything is wired correctly. I have no other issues with the sound or the preamp itself. Just seems weird. Is it possible that cold weather drains batteries? I never leave the input cable plugged in when I'm not playing the bass.

    Any thoughts? :confused:
  2. line6man

    line6man

    Joined:
    Jun 20, 2008
    Location:
    Close to Los Angeles, CA
    There is a short somewhere. Do you have a multimeter to test the current draw?
  3. bongostealth

    bongostealth Supporting Member

    Joined:
    Jun 3, 2011
    Location:
    Atlanta, GA
    No. I don't.
  4. TheAngryPocket

    TheAngryPocket

    Joined:
    Feb 28, 2011
    Location:
    The Abyss of What is my Mind
    If it's not a stereo jack, could be wired wrong. Had it happen cause I got and EMG pups and BQC system, but my jack was a mono switchcraft.
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  6. bongostealth

    bongostealth Supporting Member

    Joined:
    Jun 3, 2011
    Location:
    Atlanta, GA
    I have a stereo barrel jack.
  7. grendle

    grendle Supporting Member

    Joined:
    Mar 4, 2011
    Location:
    Central FL
    yep something is wired wrong causing the bass to stay on when the jack is unplugged. check and recheck your wireing especially at the jack .
  8. Rickett Customs

    Rickett Customs

    Joined:
    Jul 30, 2007
    Location:
    Southern Maryland
    Disclosures:
    Luthier: Rickett Customs...........www.rickettcustomguitars.com
    Have you done a continuity test between the ring and the sleeve with the jack disconnected? I'd gamble that this, or do you have any shielding near the jack?
    Are you grounding to the control cavity?
    If so, which terminal are you using for this on the jack? I made the mistake of using the ground from shielding to the sleeve (where the battery (-) was).

    Any way you slice it, The (-) from the battery is getting ground from somewhere, instead of no ground, which it should be if the jack is disconnected..
  9. edpal

    edpal Banned

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    Yes, amperage drops in most batteries technologies as temperature falls. But I doubt that is your problem, the drop is not that extreme even if frozen and most rebound when temps rise. You got a grounding issue most likely as others noted.

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