I noticed the battery in my iPad Air 2 (Nov 2014) does not seem to be lasting a whole day's intermittent use like it used to. Coconut Battery for Mac, can now look at an attached iOS device and check the battery status. My Air 2 battery is only showing 56.7% health (233 cycles) and that is after doing a battery recalibrate. The current capacity figure from Coconut, is 4145 mAh against a total design capacity of 7340 mAh of which 6982 mAh is commonly usable. I know Apple have extended the warranty on other devices, which have suffered premature battery deterioration. I wondered if others were having the same problem