Owner of Big Fluffy Web Help and Hardware Geek.
Instructions were great, skipped the logic board removal, etc. and everything was fine. Most difficulty I had was getting the lugs on the fan back over the rubber bumpers on re-assembly (they’re old and kinda trashed). Replacing the spinney drive with an SSD was much easier than expected. Didn’t use the special logic board removal tool, but it was cheap enough that I was just glad to have it. 20 minutes? No, more like an hour for the first go, but I have another one that needs an SSD so I’ll get a chance to better my time. Much thanks for a well-done set of instructions, although the previous writer who mentioned reading ALL the notes first gets a +1. Another case of RTFM, right?
Another Newer Tech buyer from MacSales.com, for another mid-2012 MBP. Yup, comes with proper screwdrivers. Battery is 78 watts and is flawless so far. The link for battery sync and calibration info at NewerTech didn’t work, but I’m a longtime user of the Watts 2 program from binary tricks software [|https://binarytricks.com]. It takes care of the syncing and conditioning of the battery and tells you when to AC power your lappy and when to let the battery run. Try the free 30 day demo.