Intermec PEN*KEY 6400 User Manual page 35

SECTION 1 General Information
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Blue Shift Mode: This annunciator shows you that the
keyboard is in the blue shift mode. Pressing a key enters
the character or performs the function shown in blue on the
overlay to the upper left of the key.
Yellow Shift Mode: This annunciator displays when the
keyboard is in the yellow shift mode. Pressing a key enters
the character or performs the function shown on the overlay
in yellow to the upper right of the key.
Battery Pack Gas Gauge Icons:
These battery icons represent the charge level in your main
battery pack.
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Once your computer gets below the 20% range, the icons are
replaced by "Ls" and after the charge level is less than 10%
your computer emits a series of beeps.
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If you have the beeper turned off, you will not hear any of the low
battery beep warnings.
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1-18 PEN*KEY Model 6400 Hand-Held Computer User's Guide
Four icons indicates more than 76 % charge level
Three icons indicates between 51--75%
Two icons indicates between 26--50%
One icon indicates between 21--25%
Four Ls indicates between 16--20% charge level
Three Ls indicates between 11--15%. At the 15%
charge level, your computer beeps once. The sound
duration and frequency are at levels you have set for
your computer.
Two Ls indicates between 6--10%. At the 10% and 7%
charge levels, your computer beeps once. The sound
duration and frequency are at levels you have set for
your computer.
One L indicates between 0--5%. At this charge level,
your computer beeps three times at its current setting
level for both duration and frequency.