Took me 5 hrs but I took it very slow. Also on my 2012 MBP retina the battery extraction and cleanup took almost 2 hrs.
Please add the bit about unscrewing the magsafe part. Way easier to take the board out and put it back together w/ the magsafe!
Worth the time just to see that “Cycle count: 1” at the battery details screen!
Make sure you leave ok space for the speakers when you align the side elements of the battery!
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