Using the Phillips #00 screwdriver remove all of the screws connecting the battery to the mother board.

Once the initial screws have been removed as indicated by the photo, use the spudger to remove the cover concealing the the clips for the dock sensor and a few more screws.

Again remove the screws with the same screwdriver and use the spudger to disconnect the spudger sesors from their respective clips.

Once the battery is freed use the spudger to remove the battery from its spot