How to Replace the Battery in a Nike Sensor

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The Nike+ Sensor is designed to work with an Apple iPod to provide personalized music and feedback during a run or other type of working. The Sensor uses an accelerometer to track strides, pace, or other workout biometrics, and, using your personalized preferences, syncs the music on your iPod with your workout to provide a motivating soundtrack. It also provides audio prompts with information during your workout. The Nike+ Sensor is a sealed component, and the battery isn't meant to be replaced, but it can be done with the right tools and a little patience.

Things You'll Need

  • Single-edged razor blade
  • #11 scalpel blade
  • Soldering iron
  • Tweezers
  • 3.0V CR2032 Li-Ion battery
  • Quick-drying cyanoacrylate glue
  • Gently pry the red top half of the Sensor from the white bottom half using a single-edge razor blade. You're really cutting them apart, but you can glue them back together again.

  • Desolder the red and black wires from the connectors attached to the battery.

  • Peel the piezoelectric sensor from the battery using the scalpel. It is the flat round thing sitting on top of the battery, with a black and white wire running from it.

  • Remove the black plastic ring around the battery, and the black plastic spacer sitting on top of the battery.

  • Work the razor blade between the connectors and the battery to break the solder joints.

  • Swap the old battery for the new one, and attach the connectors you just removed from the old battery to the new, using first glue then solder to assure a constant electrical connection.

  • Put the black plastic ring back around the battery.

  • Resolder the black and red wires to the battery connectors, and put the battery back in the bottom of the plastic shell.

  • Glue the piezoelectric sensor back to the top of the battery, and then put the black plastic spacer back on top of it.

  • Tuck all wires back into the case and place a very small amount of glue around the edge of the bottom of the case, then squeeze the top back on, applying pressure for a minute or two to make sure that the everything is tightly sealed.

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