I Have Dell Latitude E5540 Laptop, i am facing a problem with my battery. It is not charging till 100%, after 75% charge it shows 'Plugged in, not charging'. Please help me urgent. thanks
Uninstall / reinstall battery in device manager:
Type Device Manager Control Panel onto search box. Stroll down to Batteries and then expand it. Under Batteries, right-click ACPI Compliant Control Method Battery listing, and select Uninstall. To reinstall; click on 'Action' at Device Manager taskbar, and then 'Scan For Hardware Changes"
Note: If system work without AC adapter then I suggest unplug charger prior to above steps.
When did the issue start? Are you using an original Dell OEM Adapter? When you plug in the adapter to the system, does the adapter stay firm or does it fall off easily? Is the adapter frayed? Could you test with another power adapter if possible?
Restart the system and press f2 key to enter BIOS - check the adapter status in BIOS with and without the adapter plugged in. Also, wiggle the adapter cable at the end and see if the status changes in BIOS at any point. Check the battery health in BIOS (if applicable).
While in BIOS - go to Power Management -> primary battery charge configuration and check if you have set a custom stop charge point.
Also, please click my DELL-username and write me a private conversation with the service tag and your contact details(Name and Email) for case records.
Let us know if you have any other queries.