My battery was about 40% charged, plenty to power up. The apple logo seemed to linger so I was concerned something wasn’t right but then everything seemed to work so I closed it up. Whew!
Don’t be in a hurry here. Be patient. Isopropyl alcohol works great to soften the adhesive. Remove every trace from both the body and screen. Wrapping the rag around the opening tool is a good idea. I also was able to use the rag under my thumbnail to scrub the adhesive off the edge of the screen.