Laptop Battery Plugged In, Not Charging
The fix is quite easy. Most likely the problem is not with the charger, the motherboard, or the battery, but rather the software that Windows Vista or Windows 7 is using. This software is called the power management software and is easily fixed. To do so do the following:
In order to correct problems with the battery's power management software, follow the steps below.
1. Open the Device Manager
2. Select the Batteries category.
3. Right-click the Microsoft ACPI Compliant Control Method Battery listing and choose uninstall. Do not remove any of the other battery entries.
4. Scan for Hardware Changes
Windows will then automatically detect that your power management software is missing and install the newest working version.
After completing these steps you should now see the battery being charged in the system tray.