My Macbook Pro will not hold a charge

Question

If I charge my Macbook Pro 13" to a full charge, then unplug it, the battery will drain over the next 2 days. 
Specifically, if the laptop is "closed" and just sitting on my desk, the little white led light flashes slowly and the laptop loses its charge in about 2 days.  Is this standard?  It's quite annoying.... 
Should I take this back to Apple and have it serviced/looked at?
Thanks,
Lance

Answer 1

Here's more information:
Battery Information:
  Model Information:
  Serial Number:          W00154MZ6D3BA
  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):          4639
  Fully Charged:          No
  Charging:          No
  Full Charge Capacity (mAh):          5554
  Health Information:
  Cycle Count:          91
  Condition:          Normal
  Battery Installed:          Yes
  Amperage (mA):          -776
  Voltage (mV):          11984
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes):          15
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          5
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Wake on LAN:          Yes
  Display Sleep Uses Dim:          Yes
  PrioritizeNetworkReachabilityOverSleep:          0
  RestartAfterKernelPanic:          157680000
  Battery Power:
  System Sleep Timer (Minutes):          1
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          1
  Wake on AC Change:          No
  Wake on Clamshell Open:          Yes
  Current Power Source:          Yes
  Display Sleep Uses Dim:          Yes
  Reduce Brightness:          Yes
  RestartAfterKernelPanic:          157680000