DELL XPS 13 battery not detected

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  • claudyu07
    Claudyu07
    • May 2014
    • 164
    • Ireland
    #1

    DELL XPS 13 battery not detected

    hi guys
    xps 13 motherbosrd AAZ80 LA-C881P
    Schematic attached

    battery not detected
    255% remaining
    pluged in not charging.

    battery was replaced but still same problem.

    no shorts and diode mode readings on DAT_SMB, BAT_PRS,SYS_PRES are good
    with charged battery the laptop will work until it drains.

    any ideas?

    thanks
    Attached Files
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France
      #2
      Re: DELL XPS 13 battery not detected

      What are the voltage and diode mode measurements on SMB CLK and SMB DATA?
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • claudyu07
          Claudyu07
          • May 2014
          • 164
          • Ireland
          #3
          Re: DELL XPS 13 battery not detected

          Originally posted by piernov
          What are the voltage and diode mode measurements on SMB CLK and SMB DATA?
          with charger and battery connected :

          batt + 6.6V
          CLK_SMB 1.6V
          .DAT_SMB 2.2V
          BAT_PRS 0V
          short to ground when i connect battery on BAT_PRS

          thanks

            Comment

            • dspok
              Badcaps Veteran
              • Jan 2014
              • 553
              • Nepal
              #4
              Re: DELL XPS 13 battery not detected

              Originally posted by claudyu07
              hi guys
              xps 13 motherbosrd AAZ80 LA-C881P
              Schematic attached

              battery not detected
              255% remaining
              pluged in not charging.

              battery was replaced but still same problem.

              no shorts and diode mode readings on DAT_SMB, BAT_PRS,SYS_PRES are good
              with charged battery the laptop will work until it drains.

              any ideas?

              thanks
              I suspect battery is dead as it showing 255% remaining.

                Comment

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