By default, your smartpen powers off automatically when it is not used for an hour. If you are recording (even if the smartpen is stationary), playing back audio, or if you are writing, the smartpen does not turn off automatically. Your smartpen must be inactive (no recording or writing) before the Auto-Off feature activates.
Once activated, Auto-Off waits for a preset time before powering off your smartpen. You can set the length of time before your smartpen automatically powers off to be 30 minutes, 1 hour (the default), 2 hours, and 4 hours.