Help! i found my TI 83 calculator in the calculus room on the last day of school. It worked for about 5 months, but now it will not turn on. I tried the thing where you take out a battery while pressing clear, but that didnt work, and i cant adjust the constrast. the AAA batteries are ok, but could i need a new backup battery, and, if so where do i get one?

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Anonymous

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An electronics store or Radio Shack should carry this. Take your old one with so that they can test it - it should be at least 3V. The battery type is CR1616 or CR1620

Posted on May 18, 2007

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