Battery life, only 3 hours?

Question

Hello everyone I come to you tonight with a question regarding my Macbook Pro's battery life.
This computer is fairly new, it was purchased in September of 2011. At the time I was getting the advertised 6-7 hour battery life.
As time goes on, I do understand that the battery, will wind down. As of right now, I'm at 147 battery cycles and my batters "hp" (whatever that means, I don't know how that's measured.) is at 95%.
So with that, I'm now only getting 3-3.5 hours of total battery life, with my bluetooth off, and I'm only doing minor web browsing, with no flash. I'm writing this, with the only other application open being iTunes, and my timer is at 3:35 minutes @ 97% battery. My keyboard backlight is off, and my screen is only on 3 dots of the total possible. (Sorry that's very poorly described, I'm not sure of the proper way to go about it.)
So I'm wondering, is there anything that I could or should do to fix this?
The specifications for my computer are as follows, for those interested.
Mac OSX 1.7.2
2.7 Ghz Intel Core i7
8 gigabytes of ram
Thank you.

Answer 1

Battery Information:
  Model Information:
  Serial Number: xxxxxxxxxxxx
  Manufacturer:          SMP
  Device Name:          bq20z451
  Pack Lot Code:          0
  PCB Lot Code:          0
  Firmware Version:          201
  Hardware Revision:          000a
  Cell Revision:          158
  Charge Information:
  Charge Remaining (mAh):          4742
  Fully Charged:          No
  Charging:          No
  Full Charge Capacity (mAh):          5477
  Health Information:
  Cycle Count:          147
  Condition:          Normal
  Battery Installed:          Yes
  Amperage (mA):          -1443
  Voltage (mV):          11920
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes):          60
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          60
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Wake on LAN:          Yes
  Display Sleep Uses Dim:          Yes
  PrioritizeNetworkReachabilityOverSleep:          0
  RestartAfterKernelPanic:          157680000
  Standby Delay:          4200
  Standby Enabled:          0
  Battery Power:
  System Sleep Timer (Minutes):          10
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          2
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Current Power Source:          Yes
  Display Sleep Uses Dim:          Yes
  Reduce Brightness:          Yes
  RestartAfterKernelPanic:          157680000
  Standby Delay:          4200
  Standby Enabled:          0
Hardware Configuration:
  UPS Installed:          No
AC Charger Information:
  Connected:          No
  Charging:          No