I have MBP SR 2.2Ghz which is less than 2 months old. For the first month the battery health was 99% and then suddenly dropped to 94%. It has stablized at this level for several weeks. When the machine was new, I calibrated the battery as specified by Apple and have tried it several other times. Should I be concerned about this? I have 61 cycles on the battery. Would apple replace the battery or is this normal for a 2 month old laptop? Thanks for your advice.