Windows 7 has been installed for more than half a year, but the day before yesterday morning boot, suddenly found in the lower right corner of the computer battery Red Cross, prompt "please consider changing the battery" and "your battery problems, this may cause your computer to suddenly shut down ".
After searching on the Internet for a long time, I finally found a solution and the experiment was feasible.
Reference: http://blogs.technet.com/ B /mtc_beijing/archive/2011/02/10/windows-7-battery.aspx
Battery symptoms:
Possible cause: the Windows 7 battery driver is abnormal and needs to be updated again
Solution:
1. Disconnect AC
Disconnect AC Power Supply
2. Shutdown
Shutdown
3. Remove battery
Remove battery
4. Connect AC
AC Power Supply
5. Startup
Start
6. Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Battery listings, and select Uninstall (it's OK if you only have 1)
Uninstall DRIVER: Computer -- manage (right-click)-Device Manager-Battery-Microsoft ACPI Compliant Control Method Battery
7. Shutdown
Shutdown
8. Disconnect AC
Disconnect AC Power Supply
9. Insert battery
Plug in battery
10. Connect AC
AC Power Supply
11. Startup
Start
Effect:
The battery usage increases from 0% to 100%. Wow, my laptop battery used to charge up to 98%. Now it's 100%.