Jim, right now me and my Sonicare aren’t talking to one another. Battery died so I took it all apart to put in a new battery. New battery and then the shaft started loosening up. Took it apart replaced the shaft. After a week it was loose again, screw came loose even with locktite. Took it apart a third time, red locktite this time. It it misbehaves I’m turning it into a ‘39 Plymouth. 🔥