To the community members who have gotten a notification about this thread multiple times today, know that I've submitted a support ticket to have our community hosting provider investigate...
For the X150, I'm pretty sure that it does have a CMOS battery. I'm told that it should be a yellow cap over a chip on the CPU board and probably isn't visible right away when it is opened. Other than that, all I can say is that opening the switch may void the warranty, should one still apply.