Battery connector bracket lifts out easily with fingernail (non-conductive, no sparks). Top screw (closer to hinge) is shorter. I taped both to a labelled piece of paper with Magic Plus 811 removable transparent tape.

The bracket is magnetic. I found it with a pair of large flat magnets from 1980s speaker woofers, but hard drive magnets should work too. It bounced off my lap to a meter away. I should have read comments FIRST.