Introduction

This guide goes step-by-step on how to safely replace the battery on your TI-30X IIS scientific calculator.

Ensure that your calculator is a TI-30X IIS by looking in the top right corner of the front face. Look at the rear face of the calculator and locate the four case screws. There are two at the top and two at the bottom. Look at the rear face of the calculator and locate the four case screws. There are two at the top and two at the bottom.
  • Ensure that your calculator is a TI-30X IIS by looking in the top right corner of the front face.

  • Look at the rear face of the calculator and locate the four case screws. There are two at the top and two at the bottom.

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Use a Philips 00 screwdriver to remove the four case screws on the rear face of the calculator. Be sure to save the screws in a secure place as they are small and easy to lose. They will be needed later for reassembly.
  • Use a Philips 00 screwdriver to remove the four case screws on the rear face of the calculator.

  • Be sure to save the screws in a secure place as they are small and easy to lose. They will be needed later for reassembly.

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With tools and Fix Kits
With all four screws removed, use a flathead screwdriver or similar flat object to separate the front and rear casings. There are six clips that keep the cases together. These areas will require extra force to separate, but use caution to not fracture the plastic pieces. There are six clips that keep the cases together. These areas will require extra force to separate, but use caution to not fracture the plastic pieces.
  • With all four screws removed, use a flathead screwdriver or similar flat object to separate the front and rear casings.

  • There are six clips that keep the cases together. These areas will require extra force to separate, but use caution to not fracture the plastic pieces.

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With the rear case off, the battery is exposed and accessible. Using a pointed tool, slide the battery out of its terminal towards the near edge. Once the battery is protruding from the contacts, remove it with your fingers.
  • With the rear case off, the battery is exposed and accessible.

  • Using a pointed tool, slide the battery out of its terminal towards the near edge.

  • Once the battery is protruding from the contacts, remove it with your fingers.

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Properly dispose of the old battery.
  • Properly dispose of the old battery.

  • Replace the battery with an identical one, positive terminal up and negative terminal facing down towards the circuit board.

  • Following the previous steps in the reverse order to reassemble the calculator.

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Conclusion

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

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Ryan

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