Peel the battery off of the remaining adhesive and remove it.

Never reuse a deformed or damaged battery—it's a fire hazard. Replace it with a new battery.

To install a new 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.

Temporarily connect the replacement battery's cables to the motherboard and lay the battery in its recess to ensure proper fit and orientation.

If your replacement battery isn‘t already equipped with adhesive, apply 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 on the entire surface of the battery to secure it.