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What could be the proble and what can be done to correct this and get the laptop's battery charging again.

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Hey Modajo, The below be possible causes

1. Bad/failing battery - replace it

2. Corrupted BIOS - turn off the laptop, remove the AC adapter and the battery and press and hold the power button for 60 second. Then replace both the AC adapter and the battery, power it on and observe. 

3. Outdated BIOS - download the latest version and update with it

4. Dirty or misaligned battery contacts - remove the battery and run a cleaning (on both battery and laptop) or conduct an inspection and realigning.

5. Windows Power Interface/communication corruption - access thus

  1. Click Start and type device in the search field, then select Device Manager .
  2. Expand the Batteries category.
  3. Under the Batteries category, right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall .
    WARNING: Do not remove the Microsoft AC Adapter driver or any other ACPI compliant driver.
  4. On the Device Manager taskbar, click Scan for hardware changes .
    Alternately, select Action > Scan for hardware changes .

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