Owner's Manual

Table Of Contents
Getting Started 67
Batteries
BatteriesBatteries
Batteries
The TI-89 Titanium uses four AAA alkaline batteries and a button cell backup battery.
The backup battery is already installed, and the AAA batteries are provided with your
product.
Installing the AAA Batteries
Installing the AAA BatteriesInstalling the AAA Batteries
Installing the AAA Batteries
1. Remove the battery cover from the back of the calculator.
2. Unwrap the four AAA batteries provided with your product and insert them in the
battery compartment. Arrange the batteries according to the polarity (+ and -)
diagram in the battery compartment.
Accessory port
I/O portUSB port
TI-89 Titanium ports (teacher model)