TI-89 Titanium batteries Problem

  • Calculators
  • Thread starter jksik92
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  • #1
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I use TI-89 Titanium normally.

It was not even a month since I changed my batteries.

One day I pressed on but did not turn on.

I tried out other batteries and found out that batteries were not the matter of problem.

What's wrong?

What should I do?
 
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Answers and Replies

  • #2
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Your calculator contains two kinds of batteries: the three AAA batteries that you changed not long ago, and a silver oxide backup battery. Your problem might be that the backup battery is dead. Here's some information from the user manual for your calculator - http://education.ti.com/downloads/guidebooks/graphing/89ti/TI89TitaniumGuidebook_Part2_EN.pdf [Broken]

  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.
 
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