Question about Texas Instruments TI-84 Plus Calculator

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Ok so tuesday my calculator said that i should replace the batteries soon, but i read from the online manual that it usually will last two weeks. so wednesday, i turned it on and it said log( so when i tried to push any buttons, it didn't respond, it wont turn off i have to take all the batteries out! what's going on?

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  • kakima Sep 02, 2010

    What type of batteries are you using? Alkalines and rechargables have very different discharge curves. Alkalines can go weeks after the voltage drops enough to trigger the low-battery warning, but rechargables can fail in seconds.

    I'd suggest recharging/replacing the batteries.


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Having gone over a month without a response, I assume it was a battery problem as I suggested.

Posted on Oct 11, 2010

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Most likely your battery is dying.

You can replace by removing 6 screws at back of calculator, but cost of battery is around 40% of buying new TI-30XA from Amazon, Staples or elsewhere.

I've used TI-30XA's for years, batteries usually last 2-3 years, then I buy new calculator. The one time I tried to replace battery, fading display still problem, so circuit board had gone bad.

So you could try battery replace and may be OK, but also may be waste of time and $$

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