Motorola E815 / E816 Hollywood

When you go to menu>ringer styles>details, there is a line that says: Reminders. Mine is set at "beep". The choices for change are Beep, Vibrate and Off. Since the low battery beep is a reminder ( I think), can you set the reminder to vibrate or off? I haven't had my battery low enough yet to get a beep and try this. Has anyone tried? Or is the reminder beep for low battery not the same as what I just wrote about? Thanks