Dell Latitude laptop disabling charger

Question

My Dell Latitude E5510 running Windows 7, seemingly random disables the charger/adaptor. After unplugging the charger from the socket, waiting a few seconds and plugging it back in, it works fine (sometimes only for a few seconds, sometimes until fully charged).

This behaviour is not dependent on the adaptor (I tried a different Dell-adaptor) and is not displayed when the laptop is in sleep-mode or powered-off (it charges OK). I.e. the operating system/power management/... is actively disabling the charger (control-led on charger goes out).

Googeling on for this issue gives little help. A single post describes similar symptoms, with the diagnosis being that the charger was incorrectly seen by power management as a NIC, and disabled. No solution posted however.

Changing the power management settings however does not ameliorate the situation, and I do not know how to request a log of power management-related events on Windows.

Any suggestions on diagnosis/possible fixes are welcome.

Answer 1

Try this:

Disconnect AC

Shutdown

Remove battery

Connect AC

Startup

Open Device Manager

Click the plus (+) sign next to Batteries category, right-click all of the "Microsoft ACPI Compliant Control Method Battery" listings, and select Uninstall In the "Confirm Device Uninstall" dialog box, click OK. (it’s ok if you only have 1 of these).

Click the plus (+) sign next to System Devices. Right-click the “ACPI Fixed Features Button" and select Uninstall. In the "Confirm Device Uninstall" dialog box, click OK.

Shutdown

Disconnect AC

Insert battery

Connect AC

Startup