TI-89 Titanium batteries Problem

by jksik92
Tags: problem, ti-89 titanium
jksik92 is offline
Oct28-09, 11:08 PM
P: 1
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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Mark44 is offline
Oct30-09, 09:22 AM
P: 21,071
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/gu...k_Part2_EN.pdf
  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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