Sivy
(Sivy)
4
Never had this problem , but remember previous posts on this subject and my favourite method was to tape the flashlight securely to the head of a hammer!
Then with the open end of the flashlight pointing down smash the hammer into your work bench , hitting the bench with the hammer shaft so the head overhangs the bench , the sudden stop of the hammer/flashlight causes the battery to fly out onto the floor 
Do this at your own risk!!!