Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Calculators TI-89 Titanium batteries Problem

  1. Oct 28, 2009 #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?
    Last edited by a moderator: Oct 18, 2011
  2. jcsd
  3. Oct 30, 2009 #2


    Staff: Mentor

    Re: TI-89 Titanium Problem

    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

    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.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: TI-89 Titanium batteries Problem
  1. Ti-89 Titanium Problem (Replies: 4)

  2. Ti-89 titanium help (Replies: 1)