I bought my 13" 2012 MacBook Air last July. It's the most current model. I was wondering, in the system information it says my Full Charge Capacity (mAH): 5811 Cycle Count: 204 Condition: Normal Is this low for the computer not being that old? I thought brand new they were supposed to have a charge capacity of around 6700mAH. So if that is correct my battery is already worn down to 86% of the original capacity. If it drop below 80% before July, would Apple replace my battery free of charge under the manufacturer's warranty?