Did it within 5 min. As others have done, I didn't bother unplugging the screen. Simply separated it, removed old battery, installed new one.

Only "scare" I had, in the video it shows the screen slowly separating from the frame, using the pry tool to help it come loose. Well mind didn't budge at all, pulled nearly as hard as I could (suction cup barely holding) and the screen just completely popped off.

As for re assembly, make sure you line up the top of the screen first before you try to clip it all in. I just centered mine the first time and the top didn't clip in properly. Took it apart again and lined up the top first and went perfect.