I have a question for everybody. I have a 15in retina MBP and it has apple care. I took it to Power Mac to service and replace parts. However, they cannot replace the battery as their diagnostic tools indicate that it is not due for replacement. But the cycles on my battery is now over 1000 and the consumption time from my first day of use to 2015 goes from 6 hours on 100%-5% charge; and now the consumption time now goes to 2.5 hours on 100%-5% charge. I want to know if Power Mac's reasoning is valid? I really need to replace my battery.