When the sensor has approximately thirty hours of active use remaining, it will send a low-battery signal to your iPod nano, iPod touch, or iPhone 3GS, indicating that you should replace the sensor. Your iPod or iPhone will notify you of your sensor's low-battery status right before and after each workout you initiate.
The following are examples of low-battery indicators on some of the different generations of iPods and iPhone 3GS:
|iPod touch (2nd generation) and iPhone 3GS|
|Your iPod touch (2nd generation) and iPhone 3GS will alert you of the sensor's low battery when you launch the Nike + iPod application:|
|iPod nano (4th generation)|
|Before beginning your workout you will be notified to "Replace Sensor Soon":||During your workout, the sensor icon will also flash on and off:|
|iPod nano (3rd generation)|
|Before beginning your workout you will be notified to "Replace Sensor Soon":||When you end your workout, the End Workout screen will also notify you of the sensor's low-battery status:|
|iPod nano (2nd generation)|
|Your iPod nano (2nd generation) will notify you of a low sensor battery by alternately flashing the image of a battery and a shoe on your Now Running screen (see the image below) during your workout. You will also be notified at the bottom of your Workout Summary screen with the following text: "Sensor - Battery Low":|
If your Nike + iPod sensor needs replacement, you can visit an Apple Service Provider or Apple Store for a replacement kit.
For more information on the Nike + iPod Sport Kit, see the Nike + iPod User’s Guide.