Before removing the battery, it's important to protect the other components in the rear case by covering them with tape.

Cut a strip of painter's tape or scotch tape to the width of the iPad.

Press the bottom edge of the tape strip onto the rear case above the speakers and bottom antennas.

Run your finger along the bottom edge of tape strip to ensure a good seal.

Press the top edge of the tape strip over the bottom components to keep any cables from intruding on the battery removal.