Power and Batteries
The calculator is shipped with alkaline batteries. A fresh set of three
alkaline batteries provides approximately a year of normal use. How-
ever, expected battery life depends on how the calculator
frequent, long calculations require more power than short, periodic
calculations. For any level of use, mercury and silver oxide batteries
last about twice as long as alkaline batteries.
Use only fresh button-cell batteries. Do not use rechargeable batteries.
The following batteries are recommended for use. Not all batteries are
available in all countries.
Panasonic SR44 or
Toshiba NR44 or
Radio Shack NR44 or
Low Power Indicator
When the low battery annunciator
comes on, you should re-
place the batteries as soon as possible.
A: Assistance, Batteries, Memory, and Service