Texas Instruments TI-84 - Manual (Page 667)

Appendix C: Service and Warranty Information 664
Battery Information Battery Information Battery Information Battery Information
When to Replace the Batteries When to Replace the Batteries When to Replace the Batteries When to Replace the Batteries
The TI-84 Plus uses five batteries: four AAA alkaline batteries and one SR44SW or 303
silver oxide backup battery. The silver oxide battery provides auxiliary power to retain
memory while you replace the AAA batteries.
When the battery voltage level drops below a usable level, the TI-84 Plus:
After Message A is first displayed, you can expect the batteries to function for about one
or two weeks, depending on usage. (This one-week to two-week period is based on tests
with alkaline batteries; the performance of other types of batteries may vary.)
If Message B is displayed, you must replace the batteries immediately to successfully
download an application.
Replace the silver oxide battery every three or four years.
Displays this message when
you turn on the unit.
Displays this message when you attempt
to download an application.
Message A Message B