EN-8
Display Brightness and Battery Life
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Display Brightness
You can select a display brightness value in the range of 1 (least bright) to 5 (brightest). The
initial factory default brightness setting is 3.
Display brightness will change to a level that is darker than 1 (least bright) if you do not
perform any operation on the calculator for about 30 seconds. Performing an operation will
return display brightness to the level specified by the current setting value.
For details about how to configure the display brightness setting, see “Chapter 12 System
Manager” in the separate Software User’s Guide.
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Battery Life
Battery life is affected by the display brightness and backlight duration settings. Battery life
is also affected by how the calculator is used. Using a program to execute a long series of
calculations, for example, will shorten battery life.
Calculator Operation
Display Brightness
Batteries
Approximate
Battery Life*
1
Repeat of following
three-step cycle each
hour.
(1) Menu display for 5
minutes
(2)
Run-Matrix
mode
calculation for 5
minutes
(3) Flashing cursor in
Run-Matrix
mode
for 50 minutes
Display brightness
settings during each
of the three steps
described to the left.
(1) 3 for first 30
seconds, darker than
1 thereafter
(2) 3
(3) 3 for first 30
seconds, darker than
1 thereafter
Alkaline
170 hours
Nickel-metal
hydride
(recommended
type only)
100 hours
*
1
New alkaline batteries or fully-charged new nickel-metal hydride batteries used in an
ambient temperature of 25°C. Battery life values are approximate and are intended for
reference only.
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