Recalibrating more than one battery


I've recalibrated my battery each month since purchasing my MacBook Pro to keep the battery as fresh as possible. Run the battery down till it goes to sleep, wait 5 hours and then recharge it to 100%. I understand that there is a circuit that tracks battery health for the System Profiler. Because I travel a lot and didn't want to be caught somewhere with a dead battery, I purchased a new one.

If I recalibrate a battery and then switch to the other battery, how does the circuit keep track of which battery is which? If I buy that Solid state drive in the store and migrate to it, will those settings be lost?