Laptop battery does not charge beyond 54% , 55% on certain Dell PCs

Một số dòng laptop Dell  khi sạc pin đến 54%/  55%  là dừng không sạc tiếp  đặc biệt mấy dòng thế hệ 10 , bạn đừng vội  quy tội pin hư mà hãy xem lại thiết lập hệ thống bài viết sau đây sẽ giúp ích cho bạn.

( dell xps 7390 2 in 1)

Symptom

You may observe that the battery on your Dell PC does not charge beyond 55%.

Solution

This is caused by the Ownership Date being missing in the BIOS setup. Updating to the latest BIOS version from Dell Drivers and Downloads will solve the issue. Update the BIOS to the latest version and follow the instructions below once the update is complete.

To learn how to update the BIOS on your Dell PC, refer to the Dell knowledge-base article How to Download or Update your BIOS.

1. Download and install the latest BIOS. Refer to the Dell knowledge-base article How to Download or Update your BIOS.
2. Restart the PC and at the Dell logo screen, tap F2 to enter BIOS Setup.
3. In the left pane, expand Maintenance and select First Power On Date (Figure 1).
4. In the right pane, select Set Ownership Date.

Figure 1: Select Set Ownership Date and restart the PC.

5. Click Apply and Exit.
6. Restart the PC and at the Dell logo screen, tap F2 to enter BIOS Setup. Verify that the First Power On Date is no longer listed and Ownership Date is updated (Figure 2).

Figure 2: Verify Ownership Date is updated.

7. The system will now charge the battery normally.

 nguồn:  website

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