Support: MacBook won't show that it is running on battery power

[schenkkp]

I have a MacBook (purchased in May) that has issues with the battery status. When the MagSafe Adapter is plugged in, it shows that the battery is charging, but when the MagSafe Adapter is unplugged from the computer, the computer does not recognize that it is running on battery power. (It still shows that it is running on A/C power.) I have already reset the System Management Controller, and it didn't work. What else can I do?

[wywern209]

try repairing permissions?

[schenkkp]

I currently have administrative privileges. How do I "repair permissions"?

[pcs are junk]

finder > applications > utilities > disk utility > repair disk permissions.

[wywern209]

finder > applications > utilities > disk utility > repair disk permissions.

^ like that.

[schenkkp]

Thanks for your help! That did not work either. Any other ideas?