Question about Texas Instruments TI-89 Calculator

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Why is the battery life so short?

After replacing batteries, calculator will only run for an hour over a few days before it powers down. This is a new phenomenon, and I would like to get to the bottom of it.

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Maybe you batties are wek and maybe there is something again wrong with the calculator , or maybe you need stronger batteries have you tried that yet.

ps loved always

Posted on Jan 22, 2012

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Posted on Jan 02, 2017

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The life of the batteries depend on the use. If calculator is on and running programs 24 hours a day, the batteries will not last more that 2 or 3 days. If you use it the calculator for 2 hours a day, fresh batteries may last a semester.
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Regards.

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