Tilt the battery out of the device to separate the rest of the adhesive.

Remove the battery.

Apply pre-cut adhesive adhesive or double-sided tape to the battery well at the places where the old adhesive was located, not directly onto the battery.

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

Make sure that the battery sits in the center of the battery well and there's an even gap around the battery.

Press the new battery firmly into place.