Use a pair of tweezers or your fingers to remove the battery.

Use tweezers or your fingers to remove the old adhesive from the frame.

Use high-concentration isopropyl alcohol (>90%) and a lint-free cloth to remove any remaining adhesive residue.

If your replacement battery isn‘t already equipped with adhesive, apply thin, double-sided tape such as Tesa Tape directly to the battery recess where the old adhesive was.

Lay the replacement battery in its recess and press down firmly to secure it.