ASUS ROG G712LU - CHARGING ISSUE

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  • saisoni20
    Senior Member
    • Feb 2022
    • 111
    • Canada
    #1

    ASUS ROG G712LU - CHARGING ISSUE

    Hi,
    I have come across the problem with ASUS ROG G712LU. BOARD IS G532LWS.
    Laptop is working ok on AC but it has problem with battery. In BIOS battery shows always 100%. Laptop is not turning on battery.
    I can see charging voltage 8.44V on PRS8902, as soon as I connect the battery it'll become 0.44V

    Voltages I measured.
    P_CHG_SCL_5 3.3v
    P_CHG_SCL_5 3.3v
    P_CHG_BATDRV_20 - without battery connection 8.4v
    Click image for larger version Name: image.png Views: 651 Size: 180.3 KB ID: 3175112​

    Anyone can help me to resolve the problem?
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 13830
      • Canada
      #2
      Start with a known good battery. Amazon is good for returns if the battery is not required. Your smbus line voltages are fine. The bms board inside the battery could be defective or rigged to spew out the 100% charge value when it is not.

        Comment

        • saisoni20
          #2.1
          saisoni20 commented
          01-08-2024, 08:00 PM
          Editing a comment
          Thanks for the update. let me order the battery.
        • saisoni20
          Senior Member
          • Feb 2022
          • 111
          • Canada
          #3
          mon2, Thanks.
          With new battery it works perfectly fine.

            Comment

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