Texas Instruments Titanium TI-89 User Manual

Getting Started 72
Replacing the backup (silver oxide) battery
Replacing the backup (silver oxide) batteryReplacing the backup (silver oxide) battery
Replacing the backup (silver oxide) battery
1. To replace the silver oxide backup battery, remove the battery cover and unscrew
the tiny screw holding the BACK UP BATTERY cover in place.
2. Remove the old battery and install a new SR44SW or 303 battery, positive (+) side
up. Replace the cover and the screw.

Texas Instruments Titanium TI-89 Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
Memory	188 KB RAM, 2.7 MB Flash ROM
Type	Graphing Calculator
Display	Monochrome
Processor	Motorola 68000
Processor Speed	12 MHz
Power Source	4 AAA batteries
Connectivity	USB
Programming	TI-BASIC, Assembly
Operating System	AMS (Advanced Mathematics Software)