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CASIO
E-8
Display Brightness and Battery Life
I 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.
The brightness level will change to 1 (least bright) automatically 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.
I Battery LifeBattery 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, 1 thereafter
(2) 3
(3) 3 for first 30
seconds, 1 thereafter
Alkaline 140 hours
Nickel-metal
hydride
(recommended
type only)
85 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.