Remove the battery, making sure to peel off any remaining adhesive.

If you used isopropyl alcohol, wait ten minutes before installing the new battery to allow the alcohol to completely evaporate.

Do not reinstall a damaged or deformed battery, as doing so is a potential safety hazard.

During reassembly:

Secure the new battery with pre-cut adhesive or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the device at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.

Temporarily reconnect the battery to the motherboard to help align it correctly. Disconnect the battery after it is seated.