10 Elder

 • 

30.7K Posts

August 28th, 2020 08:00

Check in UEFI setup:  is the AC adapter listed along with its power rating, or showing "unknown"?

If it's unknown, the battery won't charge (don't skip this check:  the system WILL power up but the battery WILL NOT charge with an unknown adapter).

Since you've already replaced the adapter, the next suspect is the DC jack;  replace it:

https://www.parts-people.com/index.php?action=item&id=20734

If that doesn't get the adapter recognized, the mainboard charge circuit is bad;  replace the system board.

 

4 Operator

 • 

4K Posts

September 30th, 2020 02:00

You may drain the residual power of your computer and re-calibrate the battery by following the steps below:

  1. Power off your computer.
  2. Remove all the external peripherals (printers, scanners or any other USB device) connected to your computer.
  3. Please remove the AC adapter and battery of your computer.
  4. Press and hold the power button of your computer for 10-15 seconds to drain the residual power.
  5. Release the power button
  6. Keep the battery out for at least 2 - 3 hours.
  7. Then insert the battery and charge it overnight with the system powered off.
  8. Then power on the computer and see if it works.
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