Pry beneath each side of the battery using a spudger.

The adhesive may be too strong to manually remove, so heat can be applied using the iOpener. This evenly heats the adhesive and allows the battery to be lifted away easier. Do not place the iOpener directly on the battery; always apply heat on the opposite side of the device.

You may use a blow-dryer on a cool setting. Keep the dryer moving and at least 6 inches from the battery to prevent dangerous bubbling of the battery due to excess heat.