Tip & How-To about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

Changing your batteries

When you change your batteries don't take all four out at a time. There is a chance that your back up battery is and you might ruin your calculator. So when you change your batteries, do it one at a time. Try to do it with stealth. This will not reset your calculator, and this will make sure nothing will go wrong.

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How can I remove the back to change battery?


Yep.. unless you have a self winding one. They require a sharp jewelers tool to open.. Sometime you can do it yourself , but you chance ruining the watch with scratches. The jeweler puts the watch in a holder that protects the crown and steady the watch. He then takes a tool and inserts it in the seam of the watch back and pops the back open. After the battery is changed the back is pressed back into place by the devise that can put pressure on the back without risking cracking the crown.. Come on man it's only 8 bucks. Just remember once the back has been opened water proof can not be guaranteed anymore.

Jul 06, 2015 | Watches

1 Answer

TI 82 Does it need the disk battery and 4 AAA batteries to work?


No. The calculator runs on the four AAA batteries. The lithium battery is solely to retain the contents of the memory while you change the AAA batteries. If you don't care about retaining the memory, you don't need the lithium battery. You do, however, need the AAA batteries to use the calculator.

Jul 31, 2011 | Texas Instruments TI-82 Calculator

1 Answer

my ti-89 is frozen, no matter what keys i press.and although i took off 4 batteries, but when i put batteries back, it is still same, menu screen.


First try the reset code which is pressing Left-Right-Shift and On at the same time. If that doesn't work you can try removing the batteries and putting them back in while holding the (-) and ) buttons.
If those don't work, there is a back-up battery located under a panel just above the four normal batteries underneath the battery cover. Removing this in addition to the four normal batteries should reset your calculator entirely.
If none of these work then there may be a short in the circuits of your calculator which could have been caused by leaking batteries. In this case you can try disassembling the calculator (being careful to remember how it goes back together) and cleaning the circuit board with circuit cleaner.

Jun 03, 2011 | Texas Instruments TI-89 Calculator

1 Answer

TI BA II battery change How do I do this without ruining the calculator!


Turn off the calculator and turn it over with the back facing you. Using a small Phillips screwdriver, remove the four screws from the back cover. Carefully pry off the back cover. Using a small Phillips screwdriver, remove the screws from the metal battery cover and lift the cover off the battery. Tip the calculator slightly to remove the battery. Caution: Avoid contact with other calculator components. Install the new battery with the positive sign (+) sign down (not showing). Replace the battery cover and the screws that hold it in place. Align the screw holes in the back cover with those in the calculator, then snap the back cover onto the calculator. Replace the screws.

The battery is a CR2032.

May 26, 2010 | Texas Instruments BA-II Plus Calculator

1 Answer

camera dropped in snow


Where on earth do you find snow this time of year ? If moisture has got inside the camera, chances are it's ruined, I'm afraid.

May 22, 2017 | Canon PowerShot SD400 / IXUS 50 Digital...

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