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battery guage

This is a discussion on battery guage within the General Help forums, part of the LSx Technical Help Section category; has anyone ever had this happen.it only happens at night when the headlights are on but from time to time ...

  1. #1
    Member 04goatinmass's Avatar
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    Dec 2005
    Location
    salem ma
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    red
    04 pontiac gto

    battery guage

    has anyone ever had this happen.it only happens at night when the headlights are on but from time to time my guage will read like 14-15 volts then get a surge and go down right below the 13 mark then back up.when this happens everything goes dim.im worried cause i wanna put a sub and amp in and dont wanna have a huge problem

  2. #2
    Senior Member
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    Jul 2005
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    Jacksonville, FL
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    My car does that sometimes, even during the day. Thought it might've been the air pump cycling so I removed the fuse - still did it just not below 13. I don't have a system and Optima red top is only a couple months old.

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