Anatomy of a Battery Exchange

Earlier this week I reported on Apple’s recall, ahem exchange, of early MacBook Pro batteries.
After having shutdown issues with my original week 7 MacBook Pro battery (serial number 6N606) in late May I called AppleCare and it was promptly replaced with a new battery. The new battery is from an entirely new batch with a new serial number format beginning with an asterisks (*KF61918QTY4B).
After noting that my backup MBP battery was in the serial number range covered by Apple’s official exchange program (serials ending in U7SA, U7SB or U7SC) I completed Apple’s online form on Monday July 31 and receive my replacement battery yesterday (August 3).
The MBP battery I exchanged (serial number of 6N609ASSU7SC) was purchased about a month after I received my MacBook Pro and the new battery’s serial number also begins with an asterisks (*3K62935GWCRA).
Note: You must calibrate a new MacBook Pro battery to obtain the maximum lifespan. Calibrating a MBP battery involves charging it to 100 percent, then leaving it connected to power for two more hours. Then disconnect the AC adapter and run it until it goes to sleep and allow it to sleep for at least five hours. Once this is done, recharge it again normally.
What is your MacBook Pro battery’s serial number? Any problems with it? (Comments are now unauthenticated and don’t require an email so chime in!)

Earlier this week I reported on Apple’s recall, ahem exchange, of early MacBook Pro batteries.
After having shutdown issues with my original week 7 MacBook Pro battery (serial number 6N606) in late May I called AppleCare and it was promptly replaced with a new battery. The new battery is from an entirely new batch with a new serial number format beginning with an asterisks (*KF61918QTY4B).
After noting that my backup MBP battery was in the serial number range covered by Apple’s official exchange program (serials ending in U7SA, U7SB or U7SC) I completed Apple’s online form on Monday July 31 and receive my replacement battery yesterday (August 3).
The MBP battery I exchanged (serial number of 6N609ASSU7SC) was purchased about a month after I received my MacBook Pro and the new battery’s serial number also begins with an asterisks (*3K62935GWCRA).
Note: You must calibrate a new MacBook Pro battery to obtain the maximum lifespan. Calibrating a MBP battery involves charging it to 100 percent, then leaving it connected to power for two more hours. Then disconnect the AC adapter and run it until it goes to sleep and allow it to sleep for at least five hours. Once this is done, recharge it again normally.
What is your MacBook Pro battery’s serial number? Any problems with it? (Comments are now unauthenticated and don’t require an email so chime in!)