What Type of Batteries Do TI-84 Calculators Use?

A TI-84 calculator is a perfect tool for students, teachers, and professionals. This calculator is affordable, long-lasting, and easy to use with high accuracy. It uses a unique battery that most users don’t know what kind it is and how to change it properly. If you’re one of them, continue reading below.

What batteries do TI 84 calculators use?

There are different batteries for calculators. However, the TI-84 calculators, including the TI-84 Plus Silver Edition, typically use two different sets of batteries. These calculators require four AAA alkaline batteries for daily use of the calculator and one lithium or silver oxide button cell battery for memory backup (when the AAA batteries are removed). This ti 84 calculator battery type can be found in any good electronics store and is very easy to install.

How to replace the batteries in TI-84 calculators?

When you need a ti-84 plus battery replacement, remember that before changing the batteries of the TI-84 calculator, it is best to back up any calculator program you have in case they get lost. You can either choose to archive your files or use the TI-Connect Software with the help of the calculator connector cable to back up your files on your computer.

As soon as you’ve completed the steps above, it’s time to start changing the TI 84 calculator batteries. Before that, remember not to put both old and new batteries in the calculator, and don’t combine rechargeable and non-rechargeable batteries.

Here are the steps to replace the standard batteries of the TI-84 calculator:

Step 1: Turn off the calculator, then remove the battery cover by pushing down the tab firmly located at the back of the calculator.

Step 2: Replace the batteries one at a time. Take out an old battery and replace it with a new one while the other three remain in place.

Step 3: Repeat the exact procedure with the rest of the batteries. You will risk losing any data saved to the device if you remove all of the batteries at once from your calculator and then replace them with new ones.

Step 4: As soon as the batteries are replaced, realign the back battery cover by snapping off the surface gently. Press the ON button and see if the calculator turns on properly. The low battery warning that was showing before should no longer be displayed on the screen.

Moreover, here are the steps to replace the backup battery of the TI-84 calculator:

Step 1: Save the current data on the calculator before replacing the backup battery. Ensure the standard batteries are in place before proceeding to the next step.

Step 2: Remove the standard battery cover and locate the backup battery compartment. Remove the backup battery cover’s screw with a small screwdriver.

Step 3: Remove the round backup battery with care. Replace it with the new backup battery, ensuring the positive side is facing upwards.

Step 4: Return the backup battery cover and tighten the screw. Reattach the standard battery cover with care, ensuring it’s properly closed.

How long do these batteries last?

The standard batteries of the TI-84 calculator can last up to two weeks under regular use. However, you will rarely need to change the calculator’s backup battery, replaced once every three to four years. Knowing the TI 84 battery life will help you a great deal in ensuring that you do not run out of battery life when you need it the most.

Why is the calculator not working after battery replacement?

If the calculator doesn’t turn on after replacing the battery, check if you have placed the batteries correctly. If you still have issues, your calculator may need a calibration mode reset. To do this, check your manual and follow the instructions carefully.


To keep the TI-84 calculator in tip-top shape, you should consider changing its batteries as soon as it starts to lose power. Following the instructions given in this article will help you replace the batteries in your TI-84 calculator quickly and adequately. It is highly recommended to invest in high-quality batteries so that you don’t experience any issues in the future.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.