Great instructions, thanks. What helped me get the battery loose was to hit the outside of the case where the battery was with a hair dryer on high heat for about 4 minutes, then use a small flat-blade screwdriver under the battery corner, next to where the speaker is housed. It’s tempting to insert the pry tool between the battery and the thin “walls” that surround it, but the walls bent with slight pressure, so don’t do it!