Begin by inserting the flat end of a spudger underneath the battery to separate the glue from the battery.

It is better to use a plastic card if you have one.

Gently lift up the battery as you continue to separate the glue from the battery.

Lift up just enough to see where the glue is, so that you don't bend the battery.

Once the glue has been separated, gently lift up the battery and you will notice two wires attached to the motherboard.