I don't understand what is happening. I have noticed for a while now that I do not get the 7.5 hour advertised battery life on my 13 inch 2012 MBA. I'm lucky to get 6 even with less than 50% brightness and very little flash and no intensive apps open The Battery Health app showed the health at 87% a week ago which was already bad in my mind and now it's at 82.8 today. I have been regularly unplugging it over the last month as I was worried I wasn't taking it out enough. I have already tried calibrating it even though this is supposed to be unnecessary for newer Macs. I only have 109 cycle on it too so this battery health seems extremely poor. Its only a couple of percent away from that 80% 1000 cycle mark which I am not even close to approaching.