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If the battery on the Casio Cassiopeia E-125 calculator is no longer holding a charge you may need to replace the battery. This guide will show you how to easily do so. There are no tools or extra knowledge needed. You will however need to purchase a new JK-210LT (1700mAh) Casio battery to replace the existing one.

This fix should only take five minutes to complete.

  1. Casio Cassiopeia E-125 Battery Replacement, Battery: step 1, image 1 of 1
    • Flip the device over to the back side.

  2. Casio Cassiopeia E-125 Battery Replacement: step 2, image 1 of 1
    • Slide the small switch on the back to "MAIN".

  3. Casio Cassiopeia E-125 Battery Replacement: step 3, image 1 of 1
    • Slide the battery cover downwards.

    • Pull off the battery cover.

  4. Casio Cassiopeia E-125 Battery Replacement: step 4, image 1 of 1
    • Pull the black tab to remove the battery.

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

Ryan Fernandez

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