Only 52 cycles and battery health dipping to 73% at times?

Question

My macbook pro is less then a year old and I lately have been having strange battery health readings. The battery usually lasts a few hours depending on what I am doing with it unplugged. However the health twice now has dipped to 73% and then jumped back up to 89% or 91% and stayed there. Today I checked my battery condition and it said "check battery" but then went back to "good" later that day. I condition the battery regularly.
Here are my specs:
Battery Information:
Model Information:
Serial Number: Sony-ASMB012-376c-2895
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0110
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 4796
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4986
Health Information:
Cycle count: 57
Condition: Good
Battery Installed: Yes
Amperage (mA): -1817
Voltage (mV): 12027
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 0
Display Sleep Timer (Minutes): 30
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: No
Display Sleep Uses Dim: No
Battery Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 15
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: No
Charging: No
Message was edited by: cooleymtnbiker1

Answer 1

It's normal for health to fluctuate a bit (mine ranges from 86-96%, and has done that for the past 100 cycles or so). But, your fluctuations are a bit wider than I'd consider normal. Keep an eye on it, and if it dips and stays below 80%, contact Apple before your 1 year warranty expires.
When was the last time you calibrated your battery? That should be done every 2 months or so.
http://support.apple.com/kb/HT1490