The new iFixIt battery in my #OpenBSD amd64/7.4-stable 2015 MacBook Air workstation, which I did calibrate -- by charging fully, keeping it plugged in for several hours, then running it completely dead, and finally recharging fully -- seems to be performing well, so far.

It's probably been about 35 minutes of some light web browsing in #Firefox, 33% display brightness, no keyboard backlight, running @solene's obsdfreqd(1) defaults. Currently 88% and 2.75hrs estimated remaining. (2/2) #74HYPE