[TenTec] OMNI VI Question

["Rick Westerman" <Rick@dj0ip.de>]

How long does the built-in battery keep data saved to the OMNI
VI's memory?

I'm referring to stuff like the clock's time, and other menu
settings.

If I turn my power supply off overnight, the next day the OMNI
has forgotten everything.
If I leave the power supply on and only turn the OMNI off, all is
OK.
If I turn the power supply off for only a short while, all is
still OK.

It seems to me my OMNI VI has always behaved this way.
Is this normal, or should the info normally remain in memory much
longer?

Thanks for any comments.

73
Rick