Question about Texas Instruments TI-83 Plus Calculator

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Batteries drains quickly

My batteries will only last a couple of days if left in the calculator. It's like it is draining even though it had been turned off. I have to remove the batteries after I use it every time to keep it from draining. I'm using good/new Duracells

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Re: Batteries drains quickly

I had something similar, it kept saying "battery low" after putting in new batteries. Try the Clear method; Take out one battery, hold the Clear button, while holding it insert the battery again and press on, and release. Now press clear again, turn it off and turn it back on again. If that doesn't help... well it must be something else... sorry :S

Posted on May 31, 2007

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My calculator ti-84 plus is having problems. When i turn it on it will turn off quickly by itself. and while its on i try to click on any botton and it doesnt show the number etc

It could be that the main batteries are drained and are no longer able to supply power to the calculator. Replace the AA batteries with a fresh set. After replacing the batteries the display may become too dark or too dim. To set the correct contrast
Press [2nd] key and release it.
Press and maintain pressure on UpArrow to increase contrast (darken screen), OR on DownArrow to decrease it (lighten screen). If you overshoot your intented contrast you can revert the processs.

Aug 22, 2011 | Texas Instruments TI-84 Plus Calculator

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TI-84 Plus calculator keeps draining a set of batteries with each use. Can this be fixed?

Either you are putting in partially discharged batteries (test the new batteries with a battery tested NOT a voltmeter), or there is a partial short in the ca;culator (low impedance). If he batteries test good before insertion and they drain very quickly upon use, then the calculator is defective (it has some sort of low impedance in the circuitry. In this case, complain to Texas Instruments and have them give you a new calculator.

Dec 18, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

My calculator drains a set of four batteries with every use. Why?

I am not sure what every use means: duration, programs running etc. But that drainage is properly excessive. TI estimates that with 2 hours a day of usage, the batteries should last a school semester.

Possible causes of rapid drainage.
The most common causes of rapid battery drain are mismatched batteries
  1. Batteries of different brands
  2. Batteries of different types (alkaline (1.5V + rechargeable NiMH 1.2V)
  3. Batteries of different charge levels (new batteries with old ones)
  4. Negative charge build up
Another cause of rapid battery drain is the use of third-party programs: Certain of them keep large amounts of data in memory. Some of them are tweaked to bypass the TI power management scheme and disable the TI APD (automatic Power Down ) after 5 minutes of inactivity.

Possible remedies
  1. Remove all batteries (main batteries and backup battery)
  2. Leave them out of calculator for about 15 minutes. (Beware that this will clear the contents of the memory and that data will be lost along with all applications installed). However Applications cam always be reinstalled once calculator returns to its normal state.
  3. The possible benefit of the removal of all batteries is to make the negative charge build up disappear.
If that fails
If the foregoing steps fail to restore the calculator to its normal behavior, you may have to contact TI Customer Assistance by filling out and submitting a customer assistance form.

Dec 18, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

Won't power on even though i've installed new batteries. There is no corrosion on the battery terminals.

Check that the terminals in the battery compartment are clean and shiny. Remove any powder left after battery leakage. Insert fresh batteries in calculator. Make sure you respect the polarity diagram. +-+- (Many malfunctions come from incorrectly placed batteries).

After replacing batteries, calculator is restored to defaults and screen display may be too loght or too dark

To adjust the screen: Darken or lighten display

To darken screen
Press [2nd] key and release it.
Press and hold [UpArrow] until screen is dark enough.

To lighten screen
Press [2nd] key and release it.
Press and hold [DownArrow] until screen is light enough.

Hope it helps.

Nov 14, 2009 | Texas Instruments TI-86 Calculator

2 Answers

Min eis an HP 11C. flashing 0.00

If the asterisk is flashing, the batteries you put in are not good either.

Sep 12, 2009 | HP 12c Calculator

1 Answer

Minimally used calculator drains batteries fast

The draining of batteries depends on usage. Turn calculator off when not in use. Use rechargeable batteries: Have two sets of them and change batteries before the ones in use are not fully discharged.
If you get tired of that, I suggest you have the calculator repaired.

Hope it helps.

Apr 14, 2009 | Texas Instruments TI-89 Calculator

1 Answer

New, barely used 89 drains batteries quickly

Because the games programs are writen badly and are running even when the calculator is off. Battery life will be extended if you get rid of the games.

Apr 14, 2009 | Texas Instruments TI-83 Plus Silver...

1 Answer

HP48SX Battery drain


I suggest you use rechargeable batteries. They usually drain faster than the alcaline ones anyway.So have 2 sets of rechargeable batteries. Evaluate the number of days a set lasts. Insert the charged batteries before the old ones are thourougly drained.

The life of your batteries in the calculator depends on the usage.

About repairs: I am convinced that it will cost you more to have it fixed than to buy a new HP calculator (HP 49g*'s, HP 50g* 's).

Hope it helps.

Nov 13, 2008 | HP 19BII Calculator

2 Answers

Fading Display

The blinking asterik means low battery. Could be that your replacement batteries aren't full power.

What is really sounds like is a static charge problem though. If you don't have anything stored in memory that you are worried about losing, try taking the batteries out for a full 24 hours. This will let the capacitor drain and performs a static discharge. After 24 hours put working batteries back in.

Dec 19, 2007 | HP 12c Calculator

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