What type of batteries do TI-84 calculators use?

Many people are wondering what kind of batteries do TI-84 calculators use. This is a question that has been asked many times in the past, and even though it's not very common for people to own these calculators, there are still some out there. Continue reading to learn more about what TI 84 calculator battery type is and other things you need to know about them.

What batteries do TI 84 calculators use?

The TI-84 calculator is one of the most popular calculators on the market. It's a good investment for students or anyone who needs help with math.

TI-84 calculators, including TI-84 Plus Silver Edition, typically use two sets of different batteries. These calculators will require four AAA alkaline batteries for the daily use of the calculator and one lithium or silver oxide button cell battery for memory backup (when the AAA batteries are removed).

How to replace the batteries in TI-84 calculators?

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. While this doesn't happen often, it's important to be safe than sorry. 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 batteries of your TI-84 calculator.

Replacing the Standard Batteries of the TI-84 calculator

Step 1: Make sure that the calculator is turned off, 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. Repeat the exact procedure with the rest of the batteries. You will risk losing any data that has been saved to the device if you remove all of the batteries at once from your calculator and then replace them with new ones. 

In replacing the batteries, make sure that you follow the battery orientation correctly. To achieve the best results, don't put both old and new batteries in the calculator. Also, don't combine rechargeable and non-rechargeable batteries.

Remember to dispose of the old batteries the proper way, you can contact your local recycling center for best practices in recycling batteries.

Step 3: As soon as the batteries are replaced, realign the battery cover back by snapping off the cover 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.

Replacing the Backup battery of the TI-84 calculator

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

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

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

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

How long do these batteries last?

We all know that batteries lose power over time, especially if they are not used for extended periods. Replace the batteries as soon as your battery displays a warning that it is nearing depletion.

The standard batteries of the TI-84 calculator can last up to two weeks under normal use.

On the other hand, you will rarely need to change the calculator's backup battery, which is typically replaced once every three to four years.

Why is the calculator not working after battery replacement?

If the calculator won't turn on after replacing the battery, check if you have placed the batteries correctly.

If you're still having issues, your calculator may need a calibration mode reset. To do this, check your manual and follow the instructions carefully.


A TI-84 calculator is a perfect tool for students, teachers, and professionals. These calculators are easy to use with high accuracy capabilities for scientists or engineers who need the calculator's features on a daily basis.

To keep this 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 easily and adequately.

You may need to invest in high-quality batteries for this device so that its functionality is not compromised. It's very important to make sure you are using an appropriate battery brand for your device 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.