Lift the back edge of the lower case assembly and prop it up at an angle using a book or foam block.

In the following steps, you'll apply liquid adhesive remover along the edges of the battery cells. Keeping part of the MacBook elevated will help the adhesive remover flow underneath the battery.

You can reorient the MacBook as needed throughout this procedure, but try to prevent the adhesive remover from touching any components other than the battery and metal chassis.

If necessary, add a layer of aluminum foil underneath your MacBook to protect your workspace from wayward drops of adhesive remover.