Difficulty

Easy

Steps

5

Time Required

                          3 - 5 minutes

Sections

2

  • Main Battery
  • 2 steps
  • Backup Battery
  • 3 steps

Flags

0

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Introduction

What you need

Step 1

              Main Battery
  • Push firmly down on the tab located on the back of the calculator near the center.
  • Pull the tab up, lifting it off of the calculator and exposing the batteries.

Push firmly down on the tab located on the back of the calculator near the center.

Pull the tab up, lifting it off of the calculator and exposing the batteries.

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Step 2

  • Removing the AAAs and the back up battery will clear the calculator’s memory. Make sure you have backed up any important data prior to performing this step.
  • Push the positive (+) side of the batteries to remove them

Removing the AAAs and the back up battery will clear the calculator’s memory. Make sure you have backed up any important data prior to performing this step.

Push the positive (+) side of the batteries to remove them

Step 3

              Backup Battery
  • Using the Phillips #00 Screwdriver, unscrew the 15 mm screw holding the backup battery cover, located above the main battery area.

Using the Phillips #00 Screwdriver, unscrew the 15 mm screw holding the backup battery cover, located above the main battery area.

Step 4

  • Grab the plate and lift gently upward, to remove the backup battery cover.

Grab the plate and lift gently upward, to remove the backup battery cover.

Step 5

  • Wedge the small plastic opening tool under the backup battery in the gap to the left of the backup battery.
  • The backup battery is an SR44SW coin cell battery. You can also replace it with a size 357/303 or LR44 battery.
  • Push gently downward until the backup battery pops out.

Wedge the small plastic opening tool under the backup battery in the gap to the left of the backup battery.

The backup battery is an SR44SW coin cell battery. You can also replace it with a size 357/303 or LR44 battery.

Push gently downward until the backup battery pops out.

To reassemble your device, follow these instructions in reverse order.

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                                                                                      17 other people completed this guide.

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                    Agustin

Member since: 10/20/2013

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                       Cal Poly, Team 11-34, Amido Fall 2013                        

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                                            6 Guides authored

annualgain - Mar 28, 2015

Reply

My son’s TI 84 Plus C has a rechargeable battery with a little cord attached to it which is significantly different from the AAA’s shown in this Guide!

Ozan Munsuz - Feb 16, 2016

Because it’s a completely different calculator.

Andres Guaty - Jan 6, 2018

Reply

Muy instructivo e ilustrativo que permite fácilmente la operación de cambio de bacteria.

Alexander Dombroski-21 - Apr 9, 2018

Reply

Do NOT replace the back up battery and the main batteries at the same time! If you do, you will lose all of the calculator’s memory.

Aaron Rueppel - Mar 3, 2022

Too late…….. I had about 13000 bytes of programs