Hi,
Does the battery charge sometimes?
Follow the methods mentioned below and check if it helps.
Method 1: You may first check the power settings. Run the Power troubleshooter to adjust your computer's power settings and check if it helps.
Open the Power troubleshooterhttp://windows.microsoft.com/en-US/windows7/Open-the-Power-troubleshooter
Method 2: You may follow the steps and check.
a. Click Start and type device manager in the search field, then select Device Manager .
b. Expand the Batteries category.
c. Under the Batteries category, right-click the Microsoft ACPI Compliant Controllisting, and select Uninstall .
WARNING: Do not remove the Microsoft AC Adapter driver or any other ACPI compliant driver.
d. On the Device Manager taskbar, click Scan for hardware changes.
Alternately, select Action, clicking Scan for hardware changes.
Method 3: If that does not help, you may try updating BIOS and check if it helps. You may get in touch with the system manufacturer to get help for updating BIOS.
Warning:
Be careful when changing BIOS settings. The BIOS interface is designed for advanced users, and it's possible to change a setting that could prevent your computer from starting correctly.
Updating BIOS should only be done if necessary (to solve a compatibility problem, for example). It can be a complicated process, and if an error occurs, your computer could be rendered inoperable. Be sure to follow the manufacturer's instructions exactly.
Reference Link: http://windows.microsoft.com/en-US/windows7/BIOS-frequently-asked-questions
Reference these links for more information:
Battery meter: frequently asked questionshttp://windows.microsoft.com/en-US/windows7/Battery-meter-frequently-asked-questions
Solutions to common battery problems
http://windows.microsoft.com/en-US/windows7/Solutions-to-common-battery-problems
How to optimize battery power on your laptop
http://www.microsoft.com/atwork/maintenance/battery.aspx