EMachines high-pitched sound with battery

By ichbeisse06
Mar 11, 2008
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  1. Hello!
    I have an eMachines M5312 (crappy laptop, I know). It still works fine, except that it emits a high-pitched hum when I have the battery in. If I remove it and just use the power cord it is fine, but it's annoying to not have any battery power. I can hear that the sound is coming from the area around the battery, but I don't know if it is a problem with my battery or something with the internal power.
    Any ideas?
  2. raybay

    raybay TechSpot Evangelist Posts: 10,716   +6

    Every M5312 we have seen with that high pitched howl failed soon afterwards... and was not repairable.
    eMachines no longer makes laptops, I am told.
    Good luck.
  3. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,681   +153

    It is probably a wire wrapped inductor in the charging circuit that is making the noise. Probably indicatintg an impending catastrophic failure that Raybay mentions. Save your pennies for a new laptop and back up any important data while you can
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