Recently my battery health has dropped to 21% with only 79 cycles. I have tried calibrating the battery and have always done it at least once a month. Just this morning I was running on battery power and it shut off with 65% of charge left. I'm off to college in a month and am wondering if Apple will replace my battery even though I'm not under warranty. I would take it to an Apple Store but unfortunately the closest one is an hour and a half drive away. Should I try calling Apple? Thanks in advance for the help.