Question about Texas Instruments TI-83 Plus Calculator
The backup battery is intended to retain the contents of memory while you change the main batteries. It's possible to run the calculator without one.
TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.
If this doesn't do it, please append a comment to this post and we'll go on from there.
Posted on Sep 06, 2010
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Posted on Jan 02, 2017
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