It's just pressed in. If you don't want to save anything else, you can pop out the LED cover and rip out all the "innards". Then take something with the appropriate diameter, stick it through the tube (from the LED end), and shove the battery connector out. I use the same tool used to pry out the caps for refilling -- an old "push-type" spring hook. It just so happens to fit exactly inside the tube. Good luck!