Insert an opening pick or a plastic card along the edge of the battery.

Apply steady, even pressure to slowly lever the battery up and out of the phone.

If necessary, use several rounds of heating or alcohol and pressure to slowly weaken the adhesive, and the battery will begin to separate.

Try your best not to deform the battery during this process. Soft-shell lithium-ion batteries can leak dangerous chemicals, catch fire, or even explode if damaged. Do not use excessive force or pry at the battery with metal tools.