User Guide
EN-9
 Specifications
   Variables:  28
   Calculation range:  
 ±  1 × 10 
–99 
 to ± 9.999999999 × 10 
99 
 and 0. Internal operations use 15-digit mantissa.
   Exponential display range:  Norm 1: 10 
–2 
 > | x |, | x | > 10 
10 
              Norm 2: 10 
–9 
 > | x |, | x | > 10 
10 
   Program capacity:   61,000 bytes (max.)  
   Storage memory capacity:  fx-CG50: 16MB (max.)
fx-CG50 AU: 4.5MB (max.)  
   Power supply:  Four AAA-size alkaline batteries LR03 (AM4), or four nickel-metal hydride 
batteries
   Power consumption: 0.6 W
Approximate battery life:
• New alkaline batteries or fully-charged new nickel-metal hydride batteries used in an ambient 
temperature of 25°C.
• Operating Conditions
(a) Non-stop flashing cursor display in Run-Matrix mode. Each hour, display brightness 3 for 
first 30 seconds, and then darker than 1 thereafter.
(b) Repeat of one-hour cycle of (1), (2), and (3) below.
(1) Menu display for 5 minutes (The display brightness setting is 3 for first 30 seconds, 
and then darker than 1 thereafter.)
(2) Run-Matrix mode calculation for 5 minutes (display brightness 3)
(3) Flashing cursor in Run-Matrix mode for 50 minutes (The display brightness setting is 
3 for first 30 seconds, and then darker than 1 thereafter.)
(c) Power off
 Operating 
 Conditions
Batteries
(a) (b) (c)
Four AAA-size alkaline batteries LR03 
(AM4)
300 hours 170 hours 1 year
Four nickel-metal hydride batteries 
(recommended type only)
180 hours
(Reference)
100 hours
(Reference)
* Battery life can be reduced dramatically by the conditions described below.
- Continuous program calculation execution
- Manufacturer and type of battery used, differences between individual batteries
- Operating conditions (applications used)
- Calculator settings (display brightness, backlight duration)










