can you check the battery on a graphing calculator?

Question

i have a TI-84 plus silver edition graphing calculator and i'm wondering if you can check the battery life or charge on the calculator, can anyone tell me if you can, and how?

Demetrius Gusikowski · Accepted Answer

You can't check the battery status using solely the TI-OS; you'll have to download an assembly program or application. Since assembly programs can't be typed in on the calculator, you'll have to have use that calculator-computer USB cable you should have gotten. The thing with battery checkers is that they can't be exact. Instead of giving a percentage, any battery checking program will only be able to tell you if the battery is good, fair, poor, etc. That should be enough indication, however. Try this one: http://www.ticalc.org/archives/files/fileinfo/148/...

Demetrius Gusikowski · Answer

Actually on the TI 83 and TI 84, if you press the 2nd key and then press and hold the up key, you'll see a number in the upper right hand corner. It's more of a battery counter than power meter. It counts up from 0-9 based on the time the calculator is in use. When you reach 8 or 9, it's time to change the batteries.

Demetrius Gusikowski · Answer

I'm not sure how to do it but don't do what that other guy said up abou 2nd up all that does is darken display

Demetrius Gusikowski

can you check the battery on a graphing calculator?

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