It helps to first gently peel up the three tabs of the tape on the sides of the battery housing with tweezers, then peel off. That way, it should come off in one piece

Thanks! This guide helped a lot! To folks doing this replacement, the tape covering the battery comes up fairly easy if you first use your tweezers to gently lift the three tabs on the sides of the battery housing, then it should come off in one piece.

Definitely the trickiest part of any iPhone repair, but this guide helped a lot! I definitely recommend having a bright light over your work area, and perhaps even a magnifying lens to help see better and get this just right.

This guide was very helpful! I ended up just needing to tighten the screws retaining the Taptic Engine rather than replacing the whole thing, but this guide got me to that point! Thank you!