How long does the LaunchPort with Buttons battery last? March 07, 2018 17:01 Updated Follow Up to 5 years under normal use. The device uses a CR-2032 coin-cell battery which can be replaced. Related articles xPRESS Audio Keypad not holding a charge I would like to use Sleeve Buttons in Europe. What do I need? Comments 0 comments Please sign in to leave a comment.