Chosen Solution
I purchased the “new” stock battery for $119 and it came with 1 cycle and a supposed 5799mAh rating on the box. After putting the battery in, the health meter told me the battery had 95% health. Now, at 3 cycles, the battery health has dropped to 91% and 5291mAh… Is this a defect replacement???
Download Coconut Battery, which may be better at diagnostics than what you are currently using. Install and run it and let us know your results: http://www.coconut-flavour.com/coconutba…
Same problem with MBA 2011 “new” battery purchased on ifixit europe. According to coconut battery, the battery was 300 days old when I received it. Now, after one month, it only holds 86% of the maximum theoretical charge. Furthermore, I got no answer from the support to my enquiry about this problem. Pretty disappointing…
