How to Change a Casio Watch Battery

Written by cate rushton
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Some jewellers charge as much as £19 to change the battery in your Casio watch. With a little careful effort you can save both money and time. This process should be undertaken in a clean, quiet environment where you can pay close attention to the task at hand.

Skill level:
Moderately Challenging

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Things you need

  • Watch
  • Fresh battery
  • Regular tweezers
  • Sharp-point tweezers
  • Miniature screwdriver set
  • Small hand towel

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    Remove Old Battery

  1. 1

    Spread the towel out on a flat surface.

  2. 2

    Remove the watchband if necessary in order to access the back of the watch.

  3. 3

    Unscrew the back protector from the watch using the correct size miniature screw driver. Place the screws in a small pile on the towel. Be careful not to drop them as they are difficult to find.

  4. 4

    Remove the back plate by unscrewing the small screws. There is a tiny spring on the underneath of the back plate. It may be visible, or not. Make sure not to turn the watch upside down or the spring will dislodge.

  5. 5

    Remove the rubber protector to find the battery.

  6. 6

    Use sharp point tweezers to remove the clasp covering the battery. There is a small hole at one end of the clasp. Insert one end of the tweezers into the hole to spring the clasp loose.

  7. 7

    Remove the old battery with tweezers.

    Insert New Battery and Reassemble Watch

  1. 1

    Pick up the new battery using regular tweezers and put it into place. Do not touch the battery with your fingers.

  2. 2

    Replace the clasp over the top of the new battery.

  3. 3

    Perform a reset by touching the AC contact with one part of the tweezers and the back of the battery with the other part. Hold for a few seconds. Lift the watch carefully and look up at the front to make sure the watch is working. Do not turn the watch over.

  4. 4

    Replace the rubber cover.

  5. 5

    Replace the back plate by screwing the small screws back into place.

  6. 6

    Replace the back protector by screwing the small screws back into place.

  7. 7

    Reattach the watch band to the watch face.

Tips and warnings

  • Use a small towel to place the screws on so they don't become lost.
  • Do not turn the watch upside down once the back plate has been removed. The tiny spring may fall out and is very difficult to replace.
  • Do not touch the new watch battery with your fingers; use tweezers to put it into place.

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