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 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 OperationDisplay BrightnessBatteriesApproximate
Battery Life*1

 

 

 

Repeat of following

Display brightness

 

 

three-step cycle each

settings during each

 

 

hour.

of the three steps

Alkaline

140 hours

 

described to the left.

 

 

(1) Menu display for 5

(1) 3 for first 30

 

 

minutes

seconds, 1 thereafter

 

 

 

 

(2) Run-Matrix mode

(2) 3

Nickel-metal

 

calculation for 5

 

 

minutes

 

hydride

85 hours

(3) Flashing cursor in

(3) 3 for first 30

(recommended

 

Run-Matrix mode

seconds, 1 thereafter

type only)

 

for 50 minutes

 

 

 

 

 

 

 

*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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