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Watch battery losing charge too quickly

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When the battery is fully charged, your watch can be used for up to 10 hours of activities that need GPS reception, such as running and cycling.

The battery uses charge more quickly when you do the following:

  • Backlight
    You use the backlight on your watch frequently or all the time.
    The backlight can be switched on or off in SETTINGS > OPTIONS > NIGHT.

    Tip: You can cover the screen with your palm briefly to temporarily turn on the back light unless you have enabled training that uses laps.

  • Bluetooth® accessories
    You can connect the watch to accessories, such as Wireless Sports Headphones, Heart Rate Monitor or Cadence Sensor.

    Streaming audio to a wireless headset or speaker using Bluetooth® has a big impact on battery life. To extend battery life of the watch and headset, power down the headset when you’re not using it.

    There is a big difference in how the watch uses battery charge with sensors. The watch uses much more battery charge while searching for a Bluetooth® sensor. Once the sensor is found and linked, there is hardly any impact on battery life time.

    For optimal battery life during your activity, make sure the sensor is active and in range, and the sensor icon stops blinking and becomes solid before you start the activity. If you decide to not use a sensor during an activity, make sure it is switched off by pressing down from the Clock screen, then select Sensors, then OFF.

  • Tracker You track your heart rate, activities or sleep on a 24/7 basis. Of these, 24/7 heart rate tracking has the biggest impact on battery life.
    Note: Activity tracking is not availalbe on all watches.
  • Beeping and buzzing
    You use training options that generate a lot of beeping and buzzing.

  • Mobile sync
    Your watch is set to sync with your mobile phone.

    There are three options under Settings > PHONE > MANAGE > SYNCING

       
    • ON – This is needed to enable phone notifications and to automatically upload activities to your smartphone. Depending on how many applications you have open in the background, activities are synced without having to open the app.
    • MANUAL – Activities are only uploaded once you wake up the watch by pressing down from the clock screen and you have the app open on your smartphone.
    • OFF – This is the best setting for saving battery life. However, this will not allow you to sync your activities with your smartphone.
  • Smartphone notifications
    You enable smartphone notifications in SETTINGS > PHONE > MANAGE > ALERTS. This uses a permanent Bluetooth connection. The impact depends on various factors including what kind of smartphone you are using. This option is not available and greyed out if syncing is set to MANUAL or OFF.

When the watch is connected to the computer or a wall charger you are shown two different icons:

  Charging but not yet full
 
  On power and fully charged

Tip: Make sure you fully charge your watch before any important running, cycling or swimming activities. 


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