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820-3437 doesn't charge

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  • 820-3437 doesn't charge

    Without the battery everything works perfectly, The battery doesn't charge if the laptop is connected to power, however it will be recognized in OS and charge if after the laptop has already been turned on you connect the battery to the mainboard.

    The current sensing and U7100 are all working fine.

    Where to start?

  • #2
    Still sounds like a current sense issue. Did you check resistance between pins 17/18, 27/28? Q7155 is also suspect.

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    • Tony Tone
      Tony Tone commented
      Editing a comment
      Thanks Duke : )

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