LA-L246P Not Charging Batteries

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  • orientalsniper
    Badcaps Veteran
    • Apr 2013
    • 461
    • USA
    #1

    LA-L246P Not Charging Batteries

    Hello all, I've tried multiple batteries, replaced the charging IC (ISL95522AHRZ) and updated the BIOS.

    It detects the power adapter (90W), so the DC IN jack is okay.

    It shows "IDLE" instead of "Charging", battery health shows "Excellent" on the BIOS.
    Tags: None
    • Answer selected by orientalsniper at 09-16-2025, 02:24 AM.
      orientalsniper
      Badcaps Veteran
      • Apr 2013
      • 461
      • USA
      Originally posted by mon2
      Measure the voltage to ground of:

      PBAT_CHG_SMBCLK
      PBAT_CHG_SMBDAT
      Fixed it. PQB13 mosfet was shorted. Replaced it. It was feeding 19V straight to the battery.

      +19VB to +17.4V_BATT+_R
      Last edited by orientalsniper; 09-15-2025, 04:39 PM.
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        • mon2
          Badcaps Legend
          • Dec 2019
          • 14673
          • Canada
          #2
          Measure the voltage to ground of:

          PBAT_CHG_SMBCLK
          PBAT_CHG_SMBDAT

            Comment

            • orientalsniper
              Badcaps Veteran
              • Apr 2013
              • 461
              • USA
              #3
              Originally posted by mon2
              Measure the voltage to ground of:

              PBAT_CHG_SMBCLK
              PBAT_CHG_SMBDAT
              Fixed it. PQB13 mosfet was shorted. Replaced it. It was feeding 19V straight to the battery.

              +19VB to +17.4V_BATT+_R
              Last edited by orientalsniper; 09-15-2025, 04:39 PM.
                • Selected Answer

                Comment

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