cutting doesn't really work because of the 'labyrinth' (ridge).if anyone has any good suggestion on how to remove the silicone sealer in the future that would be very handy.
i did try cut away at most of it but not knowing how close the components where to the edge of the case i didn't want to risk it.
but cutting as far as you get, followed by a bit of brute force get's you inside the battery within 5 minutes after a couple of batteries.