Question about Texas Instruments TI-83 Plus Calculator

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I replaced my batteries but the calculator will not turn on.

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Take it to a technician

Posted on Sep 29, 2009

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1 Answer

48GX has been idle for 4 years.Wont turn on. Is there an internal battery that I can replace?


The 48GX runs on three AAA type alkaline batteries. However, if the device was unused that long, the button cells used for backing up the RAM cards may also be depleted, and the calculator will report "low battery" displaying the ((.)) symbol, even with fresh AAA cells installed.

The RAM card mounted batteries are type CR2016.

Main batteries:
  • Remove the calculator battery compartment door by pressing down and sliding it off away from the calculator.
  • Turn the calculator and shake the batteries out.
  • Replace with a fresh set of AAA alkaline batteries. Polarity is marked on the bottom of the battery compartment.
  • Replace the battery compartment door by sliding it back in place.
RAM card batteries:
  • Turn the calculator over and remove the plastic cover over the plug-in card ports (display-end of the calculator).
  • HP recommends to turn on the calculator while replacing the RAM card battery to avoid memory loss. I assume, your HP48GX has no marbles to recover by now anyway, so it does not matter, I guess.
  • Near the left side of the end of the card. you'll find the nail grip in the black plastic battery holder. Use a thumbnail to gently pull out the battery holder. There is one battery in each card (additional cards are options).
  • Remove the old battery from the holder and replace by a new CR2016 button cell. The "+" side of the battery should point into direction of the calculator's front.
  • Re-insert the holder with the new battery and check the RAM card is properly seated still.
  • Close the compartment by sliding back in the cover.

Jan 11, 2011 | HP 48gx Calculator

1 Answer

Replace the batteries of HP 10B calculator


Make sure the calculator is turned off. Press down and outward on the battery compartment cover until it slides off. Turn the calculator over and shake the batteries out. Insert the new batteries, orienting them according to the diagram inside. Slide the cover back into the slot.

Oct 21, 2010 | HP 10b Calculator

1 Answer

Does the calculator rely completely on solar Not turning on Do you have to change battery


The calculator uses a battery in addition to the solar cell. If the battery runs down you need to replace it. Turn the calculator over and you'll see the battery compartment in the upper-right corner (with a screw holding it shut). The calculator takes a LR44 battery or equivalent.

Make sure you clear the calculator after replacing the battery: press ON SHIFT 9 3 =

Aug 25, 2010 | Casio FX-115ES Scientific 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

My TI-84 won't turn on. If I replace the


Remove all four AAA batteries. Press and hold down the ON key for at least ten seconds. Replace the batteries. Turn the calculator on.

May 15, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

Entire battery replace but still wont turn on


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Feb 22, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

TI-83 Plus ram cleared message when turned on


It calculator tells you Ram Cleared each time you turn it on, the most likely reason is that the backup battery is depleted. Its role is to keep the memory modules electrically refreshed when calculator is turned off. If the backup battery is dead, the memory is erased when you turn calculator OFF. Main batteries no longer supply power and the contents of the memory are cleared.
  1. Check that main batteries are good and inserted in calculator.
  2. Turn calculator OFF.
  3. Replace the backup battery.
  4. Turn calculator ON.
  5. Press the [CLEAR] key to erase the "Ram Cleared" message.

Jan 19, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

It will not turn on. I've replaced the batteries


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Sep 23, 2009 | Texas Instruments TI-84 Plus Silver...

1 Answer

My TI 84 Plus won't turn on even after I replaced the battery.


The calculator needs to probably be reset (probable). You need to leave the internal battery out of the calculator for about 8 hrs. Put it back in and then put the AAA batteries back in. Hopefully this is what is wrong and then the calculator will worik.

Aug 05, 2009 | Texas Instruments TI-84 Plus Calculator

2 Answers

Turn-on woes My TI83 will not turn on. Batteries new and installed correctly. What gives? Khumalo


Take out the AAA batteries and hold the on/off key for thirty seconds. Replace the batteries and it should come on. If it doesn't remove the backup battery and the AAA batteries and hold the on/off key for another 30 seconds. Replace all batteries and turn it on again.

Oct 13, 2008 | Texas Instruments TI-83 Plus Calculator

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