Try to keep the strips flat and unwrinkled during this procedure; wrinkled strips will stick together and break instead of pulling out cleanly.

Slowly pull the adhesive tab away from the battery, toward the bottom of the iPhone.

To avoid tearing the adhesive strip, be careful not to snag it against the vibrator or other components near the battery.

Pull steadily, maintaining constant tension on the strip until it slips out from between the battery and the rear case. For best results, pull the strip at a 60º angle or less.

The strip will stretch to many times its original length. Continue pulling and re-grab the strip near the battery if necessary.

If the strip breaks, carefully try to retrieve it with your tweezers (without damaging the battery) and continue pulling. If the strip breaks off underneath the battery and can't be retrieved, continue with the steps below.