13" MBP 2009 Battery is getting crappy!

[petrucci666]

So I calibrated my battery last night in hopes of bumping up it's longevity, but with no success. Right now I'm at 100% charged, at exactly 50% brightness, Word and Powerpoint open, with the usual browsing. No music or video playing etc. The time remaining is approximately 4 hours.

I checked coconutbattery and it says that the capacity is 100% with 201 cycles and 7 month age.

Why is it not showing 5:30 to 6 hours (sometimes even 6:30) like it did only 2-3 weeks ago. Shouldn't the calibration help the longevity of the battery?

Thanks!

 

[miles01110]

Calibrating the battery only provides the software with a more accurate reading of the remaining capacity.

 

[Pax]

More likely something is using your CPU.

Word and Powerpoint can be CPU hogs. It depends on the version. What is your CPU load when it says 4 hours? How many hours if you reboot and do not open any programs at all?